140523100 has 72 divisors (see below), whose sum is σ = 321729408. Its totient is φ = 53169600.

The previous prime is 140523049. The next prime is 140523101. The reversal of 140523100 is 1325041.

It is a super-2 number, since 2×140523100² = 39493483267220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140523101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245815 + ... + 246385.

It is an arithmetic number, because the mean of its divisors is an integer number (4468464).

Almost surely, 2^140523100 is an apocalyptic number.

140523100 is a gapful number since it is divisible by the number (10) 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 140523100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160864704).

140523100 is an abundant number, since it is smaller than the sum of its proper divisors (181206308).

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

140523100 is a wasteful number, since it uses less digits than its factorization.

140523100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 140523100 is about 11854.2439657702. The cubic root of 140523100 is about 519.8953191649.

Adding to 140523100 its reverse (1325041), we get a palindrome (141848141).

The spelling of 140523100 in words is "one hundred forty million, five hundred twenty-three thousand, one hundred".