315042202 has 4 divisors (see below), whose sum is σ = 472563306. Its totient is φ = 157521100.

The previous prime is 315042193. The next prime is 315042223. The reversal of 315042202 is 202240513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202240513 = 929 ⋅217697.

It can be written as a sum of positive squares in only one way, i.e., 312971481 + 2070721 = 17691^2 + 1439^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 315042202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78760549 + ... + 78760552.

Almost surely, 2^315042202 is an apocalyptic number.

315042202 is a deficient number, since it is larger than the sum of its proper divisors (157521104).

315042202 is a wasteful number, since it uses less digits than its factorization.

315042202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157521103.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 315042202 is about 17749.4282161426. The cubic root of 315042202 is about 680.4395960898.

Adding to 315042202 its reverse (202240513), we get a palindrome (517282715).

The spelling of 315042202 in words is "three hundred fifteen million, forty-two thousand, two hundred two".