140452131 has 4 divisors (see below), whose sum is σ = 187269512. Its totient is φ = 93634752.

The previous prime is 140452127. The next prime is 140452153. The reversal of 140452131 is 131254041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 140452131 - 2² = 140452127 is a prime.

It is a super-2 number, since 2×140452131² = 39453602204882322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140452098 and 140452107.

It is not an unprimeable number, because it can be changed into a prime (140452331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23408686 + ... + 23408691.

It is an arithmetic number, because the mean of its divisors is an integer number (46817378).

Almost surely, 2^140452131 is an apocalyptic number.

140452131 is a deficient number, since it is larger than the sum of its proper divisors (46817381).

140452131 is an equidigital number, since it uses as much as digits as its factorization.

140452131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46817380.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 140452131 is about 11851.2501872165. The cubic root of 140452131 is about 519.8077827528.

It can be divided in two parts, 1404 and 52131, that added together give a palindrome (53535).

The spelling of 140452131 in words is "one hundred forty million, four hundred fifty-two thousand, one hundred thirty-one".