31214930545 has 16 divisors (see below), whose sum is σ = 39665589840. Its totient is φ = 23500478464.

The previous prime is 31214930497. The next prime is 31214930557. The reversal of 31214930545 is 54503941213.

It can be written as a sum of positive squares in 8 ways, for example, as 10642191921 + 20572738624 = 103161^2 + 143432^2 .

It is a cyclic number.

It is not a de Polignac number, because 31214930545 - 2¹¹ = 31214928497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1260099 + ... + 1284631.

It is an arithmetic number, because the mean of its divisors is an integer number (2479099365).

Almost surely, 2^31214930545 is an apocalyptic number.

It is an amenable number.

31214930545 is a deficient number, since it is larger than the sum of its proper divisors (8450659295).

31214930545 is a wasteful number, since it uses less digits than its factorization.

31214930545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39524.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 31214930545 in words is "thirty-one billion, two hundred fourteen million, nine hundred thirty thousand, five hundred forty-five".