315142207 has 4 divisors (see below), whose sum is σ = 315446560. Its totient is φ = 314837856.

The previous prime is 315142183. The next prime is 315142211. The reversal of 315142207 is 702241513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702241513 = 167 ⋅4205039.

It is a cyclic number.

It is not a de Polignac number, because 315142207 - 2¹¹ = 315140159 is a prime.

It is a super-2 number, since 2×315142207² = 198629221265661698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315142237) 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, 150618 + ... + 152695.

It is an arithmetic number, because the mean of its divisors is an integer number (78861640).

Almost surely, 2^315142207 is an apocalyptic number.

315142207 is a deficient number, since it is larger than the sum of its proper divisors (304353).

315142207 is a wasteful number, since it uses less digits than its factorization.

315142207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304352.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 315142207 is about 17752.2451256172. The cubic root of 315142207 is about 680.5115866173.

The spelling of 315142207 in words is "three hundred fifteen million, one hundred forty-two thousand, two hundred seven".