315032551 has 2 divisors, whose sum is σ = 315032552. Its totient is φ = 315032550.

The previous prime is 315032537. The next prime is 315032567. The reversal of 315032551 is 155230513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315032551 - 2¹⁹ = 314508263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315032051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157516275 + 157516276.

It is an arithmetic number, because the mean of its divisors is an integer number (157516276).

Almost surely, 2^315032551 is an apocalyptic number.

315032551 is a deficient number, since it is larger than the sum of its proper divisors (1).

315032551 is an equidigital number, since it uses as much as digits as its factorization.

315032551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 315032551 is about 17749.1563461478. The cubic root of 315032551 is about 680.4326478254.

The spelling of 315032551 in words is "three hundred fifteen million, thirty-two thousand, five hundred fifty-one".