140811057 has 6 divisors (see below), whose sum is σ = 203393762. Its totient is φ = 93874032.

The previous prime is 140811053. The next prime is 140811059. The reversal of 140811057 is 750118041.

It can be written as a sum of positive squares in only one way, i.e., 130850721 + 9960336 = 11439^2 + 3156^2 .

It is not a de Polignac number, because 140811057 - 2² = 140811053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140811057.

It is not an unprimeable number, because it can be changed into a prime (140811053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7822828 + ... + 7822845.

Almost surely, 2^140811057 is an apocalyptic number.

It is an amenable number.

140811057 is a deficient number, since it is larger than the sum of its proper divisors (62582705).

140811057 is a wasteful number, since it uses less digits than its factorization.

140811057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15645679 (or 15645676 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 140811057 is about 11866.3834844488. The cubic root of 140811057 is about 520.2501964140.

Adding to 140811057 its reverse (750118041), we get a palindrome (890929098).

The spelling of 140811057 in words is "one hundred forty million, eight hundred eleven thousand, fifty-seven".