315747097 has 4 divisors (see below), whose sum is σ = 315782656. Its totient is φ = 315711540.

The previous prime is 315747083. The next prime is 315747101. The reversal of 315747097 is 790747513.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 790747513 = 239 ⋅3308567.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315747097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315747077) 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, 8008 + ... + 26374.

It is an arithmetic number, because the mean of its divisors is an integer number (78945664).

Almost surely, 2^315747097 is an apocalyptic number.

It is an amenable number.

315747097 is a deficient number, since it is larger than the sum of its proper divisors (35559).

315747097 is a wasteful number, since it uses less digits than its factorization.

315747097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35558.

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 315747097 is about 17769.2739581560. The cubic root of 315747097 is about 680.9467040114.

The spelling of 315747097 in words is "three hundred fifteen million, seven hundred forty-seven thousand, ninety-seven".