140522004 has 108 divisors (see below), whose sum is σ = 424566324. Its totient is φ = 39045888.

The previous prime is 140521999. The next prime is 140522009. The reversal of 140522004 is 400225041.

140522004 is a `hidden beast` number, since 140 + 522 + 0 + 0 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (140521999) and next prime (140522009).

It can be written as a sum of positive squares in 2 ways, for example, as 66389904 + 74132100 = 8148^2 + 8610^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140522009) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 64192 + ... + 66344.

Almost surely, 2^140522004 is an apocalyptic number.

140522004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140522004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212283162).

140522004 is an abundant number, since it is smaller than the sum of its proper divisors (284044320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140522004 is a wasteful number, since it uses less digits than its factorization.

140522004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214 (or 2202 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 140522004 is about 11854.1977375105. The cubic root of 140522004 is about 519.8939675324.

Adding to 140522004 its reverse (400225041), we get a palindrome (540747045).

It can be divided in two parts, 1405 and 22004, that added together give a square (23409 = 153²).

The spelling of 140522004 in words is "one hundred forty million, five hundred twenty-two thousand, four".