1275345131 has 2 divisors, whose sum is σ = 1275345132. Its totient is φ = 1275345130.

The previous prime is 1275345061. The next prime is 1275345133. The reversal of 1275345131 is 1315435721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1275345131 - 2¹⁸ = 1275082987 is a prime.

It is a super-2 number, since 2×1275345131² = 3253010406330814322, which contains 22 as substring.

Together with 1275345133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1275345133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637672565 + 637672566.

It is an arithmetic number, because the mean of its divisors is an integer number (637672566).

Almost surely, 2^1275345131 is an apocalyptic number.

1275345131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275345131 is an equidigital number, since it uses as much as digits as its factorization.

1275345131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 32.

The square root of 1275345131 is about 35711.9746163664. The cubic root of 1275345131 is about 1084.4492751832.

The spelling of 1275345131 in words is "one billion, two hundred seventy-five million, three hundred forty-five thousand, one hundred thirty-one".