315231127 has 2 divisors, whose sum is σ = 315231128. Its totient is φ = 315231126.

The previous prime is 315231107. The next prime is 315231143. The reversal of 315231127 is 721132513.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315231127 - 2²³ = 306842519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315231107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157615563 + 157615564.

It is an arithmetic number, because the mean of its divisors is an integer number (157615564).

Almost surely, 2^315231127 is an apocalyptic number.

315231127 is a deficient number, since it is larger than the sum of its proper divisors (1).

315231127 is an equidigital number, since it uses as much as digits as its factorization.

315231127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 25.

The square root of 315231127 is about 17754.7494209296. The cubic root of 315231127 is about 680.5755846036.

The spelling of 315231127 in words is "three hundred fifteen million, two hundred thirty-one thousand, one hundred twenty-seven".