315427 has 4 divisors (see below), whose sum is σ = 360496. Its totient is φ = 270360.

The previous prime is 315421. The next prime is 315437. The reversal of 315427 is 724513.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315427 is a prime.

It is a Duffinian number.

315427 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 315398 and 315407.

It is not an unprimeable number, because it can be changed into a prime (315421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22524 + ... + 22537.

It is an arithmetic number, because the mean of its divisors is an integer number (90124).

2³¹⁵⁴²⁷ is an apocalyptic number.

315427 is a deficient number, since it is larger than the sum of its proper divisors (45069).

315427 is an equidigital number, since it uses as much as digits as its factorization.

315427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45068.

The product of its digits is 840, while the sum is 22.

The square root of 315427 is about 561.6288810238. The cubic root of 315427 is about 68.0716516943.

It can be divided in two parts, 3154 and 27, that multiplied together give a palindrome (85158).

The spelling of 315427 in words is "three hundred fifteen thousand, four hundred twenty-seven".