31379288147 has 2 divisors, whose sum is σ = 31379288148. Its totient is φ = 31379288146.

The previous prime is 31379288117. The next prime is 31379288167. The reversal of 31379288147 is 74188297313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31379288147 - 2²⁸ = 31110852691 is a prime.

It is a super-2 number, since 2×31379288147² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31379288107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15689644073 + 15689644074.

It is an arithmetic number, because the mean of its divisors is an integer number (15689644074).

Almost surely, 2^31379288147 is an apocalyptic number.

31379288147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31379288147 is an equidigital number, since it uses as much as digits as its factorization.

31379288147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 53.

The spelling of 31379288147 in words is "thirty-one billion, three hundred seventy-nine million, two hundred eighty-eight thousand, one hundred forty-seven".