315534551 has 2 divisors, whose sum is σ = 315534552. Its totient is φ = 315534550.

The previous prime is 315534503. The next prime is 315534553. The reversal of 315534551 is 155435513.

It is a strong prime.

It is an emirp because it is prime and its reverse (155435513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315534551 - 2¹⁴ = 315518167 is a prime.

Together with 315534553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315534553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157767275 + 157767276.

It is an arithmetic number, because the mean of its divisors is an integer number (157767276).

Almost surely, 2^315534551 is an apocalyptic number.

315534551 is a deficient number, since it is larger than the sum of its proper divisors (1).

315534551 is an equidigital number, since it uses as much as digits as its factorization.

315534551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22500, while the sum is 32.

The square root of 315534551 is about 17763.2922342678. The cubic root of 315534551 is about 680.7938760178.

The spelling of 315534551 in words is "three hundred fifteen million, five hundred thirty-four thousand, five hundred fifty-one".