31252714145 has 4 divisors (see below), whose sum is σ = 37503256980. Its totient is φ = 25002171312.

The previous prime is 31252714117. The next prime is 31252714169. The reversal of 31252714145 is 54141725213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54141725213 = 63629 ⋅850897.

It can be written as a sum of positive squares in 2 ways, for example, as 3652872721 + 27599841424 = 60439^2 + 166132^2 .

It is a cyclic number.

It is not a de Polignac number, because 31252714145 - 2⁸ = 31252713889 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3125271410 + ... + 3125271419.

It is an arithmetic number, because the mean of its divisors is an integer number (9375814245).

Almost surely, 2^31252714145 is an apocalyptic number.

It is an amenable number.

31252714145 is a deficient number, since it is larger than the sum of its proper divisors (6250542835).

31252714145 is an equidigital number, since it uses as much as digits as its factorization.

31252714145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250542834.

The product of its digits is 33600, while the sum is 35.

The spelling of 31252714145 in words is "thirty-one billion, two hundred fifty-two million, seven hundred fourteen thousand, one hundred forty-five".