315032505 has 16 divisors (see below), whose sum is σ = 504373824. Its totient is φ = 167910080.

The previous prime is 315032489. The next prime is 315032507. The reversal of 315032505 is 505230513.

It is not a de Polignac number, because 315032505 - 2⁴ = 315032489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315032507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21367 + ... + 32963.

It is an arithmetic number, because the mean of its divisors is an integer number (31523364).

Almost surely, 2^315032505 is an apocalyptic number.

It is an amenable number.

315032505 is a deficient number, since it is larger than the sum of its proper divisors (189341319).

315032505 is a wasteful number, since it uses less digits than its factorization.

315032505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13416.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 315032505 is about 17749.1550503115. The cubic root of 315032505 is about 680.4326147072.

The spelling of 315032505 in words is "three hundred fifteen million, thirty-two thousand, five hundred five".