140052451 has 32 divisors (see below), whose sum is σ = 188153856. Its totient is φ = 100980000.

The previous prime is 140052449. The next prime is 140052461. The reversal of 140052451 is 154250041.

It is not a de Polignac number, because 140052451 - 2¹ = 140052449 is a prime.

It is a super-2 number, since 2×140052451² = 39229378062214802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140052431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53626 + ... + 56176.

It is an arithmetic number, because the mean of its divisors is an integer number (5879808).

Almost surely, 2^140052451 is an apocalyptic number.

140052451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140052451 is a deficient number, since it is larger than the sum of its proper divisors (48101405).

140052451 is a wasteful number, since it uses less digits than its factorization.

140052451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 140052451 is about 11834.3758179297. The cubic root of 140052451 is about 519.3142476858.

The spelling of 140052451 in words is "one hundred forty million, fifty-two thousand, four hundred fifty-one".