313235479 has 2 divisors, whose sum is σ = 313235480. Its totient is φ = 313235478.

The previous prime is 313235471. The next prime is 313235509. The reversal of 313235479 is 974532313.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (974532313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313235479 - 2³ = 313235471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313235471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156617739 + 156617740.

It is an arithmetic number, because the mean of its divisors is an integer number (156617740).

Almost surely, 2^313235479 is an apocalyptic number.

313235479 is a deficient number, since it is larger than the sum of its proper divisors (1).

313235479 is an equidigital number, since it uses as much as digits as its factorization.

313235479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 37.

The square root of 313235479 is about 17698.4597917446. The cubic root of 313235479 is about 679.1363596163.

The spelling of 313235479 in words is "three hundred thirteen million, two hundred thirty-five thousand, four hundred seventy-nine".