140001057 has 12 divisors (see below), whose sum is σ = 231112960. Its totient is φ = 80000568.

The previous prime is 140001031. The next prime is 140001073. The reversal of 140001057 is 750100041.

It is not a de Polignac number, because 140001057 - 2¹⁵ = 139968289 is a prime.

It is a super-2 number, since 2×140001057² = 39200591922234498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140001097) 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, 1111057 + ... + 1111182.

Almost surely, 2^140001057 is an apocalyptic number.

It is an amenable number.

140001057 is a deficient number, since it is larger than the sum of its proper divisors (91111903).

140001057 is a wasteful number, since it uses less digits than its factorization.

140001057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222252 (or 2222249 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 140001057 is about 11832.2042325173. The cubic root of 140001057 is about 519.2507169595.

Adding to 140001057 its reverse (750100041), we get a palindrome (890101098).

The spelling of 140001057 in words is "one hundred forty million, one thousand, fifty-seven".