315133501 has 4 divisors (see below), whose sum is σ = 316147104. Its totient is φ = 314119900.

The previous prime is 315133499. The next prime is 315133523. The reversal of 315133501 is 105331513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315133501 - 2¹ = 315133499 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315133531) 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, 506335 + ... + 506956.

It is an arithmetic number, because the mean of its divisors is an integer number (79036776).

Almost surely, 2^315133501 is an apocalyptic number.

It is an amenable number.

315133501 is a deficient number, since it is larger than the sum of its proper divisors (1013603).

315133501 is a wasteful number, since it uses less digits than its factorization.

315133501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013602.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 315133501 is about 17751.9999155025. Note that the first 4 decimals coincide. The cubic root of 315133501 is about 680.5053200406.

The spelling of 315133501 in words is "three hundred fifteen million, one hundred thirty-three thousand, five hundred one".