315292189 has 4 divisors (see below), whose sum is σ = 315812224. Its totient is φ = 314772156.

The previous prime is 315292169. The next prime is 315292223. The reversal of 315292189 is 981292513.

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 an emirpimes, since its reverse is a distinct semiprime: 981292513 = 17 ⋅57723089.

It is a cyclic number.

It is not a de Polignac number, because 315292189 - 2⁹ = 315291677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315292129) 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, 259107 + ... + 260320.

It is an arithmetic number, because the mean of its divisors is an integer number (78953056).

Almost surely, 2^315292189 is an apocalyptic number.

It is an amenable number.

315292189 is a deficient number, since it is larger than the sum of its proper divisors (520035).

315292189 is an equidigital number, since it uses as much as digits as its factorization.

315292189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520034.

The product of its digits is 38880, while the sum is 40.

The square root of 315292189 is about 17756.4689338843. The cubic root of 315292189 is about 680.6195255090.

The spelling of 315292189 in words is "three hundred fifteen million, two hundred ninety-two thousand, one hundred eighty-nine".