140945057 has 8 divisors (see below), whose sum is σ = 157030272. Its totient is φ = 125405200.

The previous prime is 140945047. The next prime is 140945083. The reversal of 140945057 is 750549041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140945057 - 2²⁰ = 139896481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140945047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135794 + ... + 136827.

It is an arithmetic number, because the mean of its divisors is an integer number (19628784).

Almost surely, 2^140945057 is an apocalyptic number.

It is an amenable number.

140945057 is a deficient number, since it is larger than the sum of its proper divisors (16085215).

140945057 is a wasteful number, since it uses less digits than its factorization.

140945057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272679.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 140945057 is about 11872.0283439689. The cubic root of 140945057 is about 520.4151726256.

The spelling of 140945057 in words is "one hundred forty million, nine hundred forty-five thousand, fifty-seven".