313131451 has 2 divisors, whose sum is σ = 313131452. Its totient is φ = 313131450.

The previous prime is 313131389. The next prime is 313131463. The reversal of 313131451 is 154131313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313131451 - 2¹¹ = 313129403 is a prime.

It is not a weakly prime, because it can be changed into another prime (313131491) 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, 156565725 + 156565726.

It is an arithmetic number, because the mean of its divisors is an integer number (156565726).

Almost surely, 2^313131451 is an apocalyptic number.

313131451 is a deficient number, since it is larger than the sum of its proper divisors (1).

313131451 is an equidigital number, since it uses as much as digits as its factorization.

313131451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 22.

The square root of 313131451 is about 17695.5206478928. The cubic root of 313131451 is about 679.0611690920.

Adding to 313131451 its reverse (154131313), we get a palindrome (467262764).

The spelling of 313131451 in words is "three hundred thirteen million, one hundred thirty-one thousand, four hundred fifty-one".