315234551 has 4 divisors (see below), whose sum is σ = 315273504. Its totient is φ = 315195600.

The previous prime is 315234541. The next prime is 315234559. The reversal of 315234551 is 155432513.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 315234551 - 2¹⁸ = 314972407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315234559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2270 + ... + 25211.

It is an arithmetic number, because the mean of its divisors is an integer number (78818376).

Almost surely, 2^315234551 is an apocalyptic number.

315234551 is a deficient number, since it is larger than the sum of its proper divisors (38953).

315234551 is a wasteful number, since it uses less digits than its factorization.

315234551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38952.

The product of its digits is 9000, while the sum is 29.

The square root of 315234551 is about 17754.8458455713. The cubic root of 315234551 is about 680.5780487029.

The spelling of 315234551 in words is "three hundred fifteen million, two hundred thirty-four thousand, five hundred fifty-one".