313154431 has 2 divisors, whose sum is σ = 313154432. Its totient is φ = 313154430.

The previous prime is 313154417. The next prime is 313154461. The reversal of 313154431 is 134451313.

It is a weak prime.

It is an emirp because it is prime and its reverse (134451313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313154431 is a prime.

It is a super-2 number, since 2×313154431² = 196131395309867522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313154396 and 313154405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313154411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156577215 + 156577216.

It is an arithmetic number, because the mean of its divisors is an integer number (156577216).

Almost surely, 2^313154431 is an apocalyptic number.

313154431 is a deficient number, since it is larger than the sum of its proper divisors (1).

313154431 is an equidigital number, since it uses as much as digits as its factorization.

313154431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 313154431 is about 17696.1699528457. The cubic root of 313154431 is about 679.0777802669.

The spelling of 313154431 in words is "three hundred thirteen million, one hundred fifty-four thousand, four hundred thirty-one".