315073109 has 4 divisors (see below), whose sum is σ = 339309516. Its totient is φ = 290836704.

The previous prime is 315073103. The next prime is 315073117. The reversal of 315073109 is 901370513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47914084 + 267159025 = 6922^2 + 16345^2 .

It is a cyclic number.

It is not a de Polignac number, because 315073109 - 2⁸ = 315072853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315073103) 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, 12118184 + ... + 12118209.

It is an arithmetic number, because the mean of its divisors is an integer number (84827379).

Almost surely, 2^315073109 is an apocalyptic number.

It is an amenable number.

315073109 is a deficient number, since it is larger than the sum of its proper divisors (24236407).

315073109 is a wasteful number, since it uses less digits than its factorization.

315073109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24236406.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 315073109 is about 17750.2988425547. The cubic root of 315073109 is about 680.4618467161.

The spelling of 315073109 in words is "three hundred fifteen million, seventy-three thousand, one hundred nine".