313506287 has 2 divisors, whose sum is σ = 313506288. Its totient is φ = 313506286.

The previous prime is 313506253. The next prime is 313506293. The reversal of 313506287 is 782605313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313506287 - 2¹⁴ = 313489903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313506247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156753143 + 156753144.

It is an arithmetic number, because the mean of its divisors is an integer number (156753144).

Almost surely, 2^313506287 is an apocalyptic number.

313506287 is a deficient number, since it is larger than the sum of its proper divisors (1).

313506287 is an equidigital number, since it uses as much as digits as its factorization.

313506287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 313506287 is about 17706.1087481129. The cubic root of 313506287 is about 679.3320192139.

The spelling of 313506287 in words is "three hundred thirteen million, five hundred six thousand, two hundred eighty-seven".