140822172 has 48 divisors (see below), whose sum is σ = 368005120. Its totient is φ = 46566576.

The previous prime is 140822159. The next prime is 140822177. The reversal of 140822172 is 271228041.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140822177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8583 + ... + 18849.

Almost surely, 2^140822172 is an apocalyptic number.

140822172 is a gapful number since it is divisible by the number (12) 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 140822172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184002560).

140822172 is an abundant number, since it is smaller than the sum of its proper divisors (227182948).

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

140822172 is a wasteful number, since it uses less digits than its factorization.

140822172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10407 (or 10399 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 140822172 is about 11866.8518150350. The cubic root of 140822172 is about 520.2638848012.

The spelling of 140822172 in words is "one hundred forty million, eight hundred twenty-two thousand, one hundred seventy-two".