140556172 has 12 divisors (see below), whose sum is σ = 250142760. Its totient is φ = 69086816.

The previous prime is 140556161. The next prime is 140556181. The reversal of 140556172 is 271655041.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297553 + ... + 298024.

It is an arithmetic number, because the mean of its divisors is an integer number (20845230).

Almost surely, 2^140556172 is an apocalyptic number.

It is an amenable number.

140556172 is a deficient number, since it is larger than the sum of its proper divisors (109586588).

140556172 is a wasteful number, since it uses less digits than its factorization.

140556172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595640 (or 595638 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 140556172 is about 11855.6388271573. The cubic root of 140556172 is about 519.9361016158.

The spelling of 140556172 in words is "one hundred forty million, five hundred fifty-six thousand, one hundred seventy-two".