313158073 has 2 divisors, whose sum is σ = 313158074. Its totient is φ = 313158072.

The previous prime is 313157993. The next prime is 313158089. The reversal of 313158073 is 370851313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238300969 + 74857104 = 15437^2 + 8652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313158073 is a prime.

It is not a weakly prime, because it can be changed into another prime (313158473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156579036 + 156579037.

It is an arithmetic number, because the mean of its divisors is an integer number (156579037).

Almost surely, 2^313158073 is an apocalyptic number.

It is an amenable number.

313158073 is a deficient number, since it is larger than the sum of its proper divisors (1).

313158073 is an equidigital number, since it uses as much as digits as its factorization.

313158073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 313158073 is about 17696.2728561695. The cubic root of 313158073 is about 679.0804128250.

The spelling of 313158073 in words is "three hundred thirteen million, one hundred fifty-eight thousand, seventy-three".