315920029 has 2 divisors, whose sum is σ = 315920030. Its totient is φ = 315920028.

The previous prime is 315919991. The next prime is 315920063. The reversal of 315920029 is 920029513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288932004 + 26988025 = 16998^2 + 5195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315920029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315920629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157960014 + 157960015.

It is an arithmetic number, because the mean of its divisors is an integer number (157960015).

Almost surely, 2^315920029 is an apocalyptic number.

It is an amenable number.

315920029 is a deficient number, since it is larger than the sum of its proper divisors (1).

315920029 is an equidigital number, since it uses as much as digits as its factorization.

315920029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 315920029 is about 17774.1393321871. The cubic root of 315920029 is about 681.0709975624.

The spelling of 315920029 in words is "three hundred fifteen million, nine hundred twenty thousand, twenty-nine".