2140354631 has 12 divisors (see below), whose sum is σ = 2241561168. Its totient is φ = 2043543744.

The previous prime is 2140354613. The next prime is 2140354637. The reversal of 2140354631 is 1364530412.

It is a de Polignac number, because none of the positive numbers 2^k-2140354631 is a prime.

It is a super-2 number, since 2×2140354631² = 9162235892886292322, 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 = 2140354594 and 2140354603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140354637) 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, 310286 + ... + 317108.

It is an arithmetic number, because the mean of its divisors is an integer number (186796764).

Almost surely, 2^2140354631 is an apocalyptic number.

2140354631 is a deficient number, since it is larger than the sum of its proper divisors (101206537).

2140354631 is an equidigital number, since it uses as much as digits as its factorization.

2140354631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7462 (or 7439 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2140354631 is about 46263.9668748801. The cubic root of 2140354631 is about 1288.7299221522.

The spelling of 2140354631 in words is "two billion, one hundred forty million, three hundred fifty-four thousand, six hundred thirty-one".