140231172 has 36 divisors (see below), whose sum is σ = 345344496. Its totient is φ = 44282160.

The previous prime is 140231107. The next prime is 140231173. The reversal of 140231172 is 271132041.

It is not an unprimeable number, because it can be changed into a prime (140231173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11854 + ... + 20517.

Almost surely, 2^140231172 is an apocalyptic number.

140231172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140231172 is an abundant number, since it is smaller than the sum of its proper divisors (205113324).

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

140231172 is a wasteful number, since it uses less digits than its factorization.

140231172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32416 (or 32395 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 140231172 is about 11841.9243368635. The cubic root of 140231172 is about 519.5350528429.

The spelling of 140231172 in words is "one hundred forty million, two hundred thirty-one thousand, one hundred seventy-two".