140053251 has 32 divisors (see below), whose sum is σ = 209599488. Its totient is φ = 82615680.

The previous prime is 140053247. The next prime is 140053261. The reversal of 140053251 is 152350041.

It is not a de Polignac number, because 140053251 - 2² = 140053247 is a prime.

It is a super-2 number, since 2×140053251² = 39229826231338002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140053211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101770 + ... + 103136.

It is an arithmetic number, because the mean of its divisors is an integer number (6549984).

Almost surely, 2^140053251 is an apocalyptic number.

140053251 is a deficient number, since it is larger than the sum of its proper divisors (69546237).

140053251 is a wasteful number, since it uses less digits than its factorization.

140053251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 140053251 is about 11834.4096177207. The cubic root of 140053251 is about 519.3152364835.

The spelling of 140053251 in words is "one hundred forty million, fifty-three thousand, two hundred fifty-one".