315669 has 8 divisors (see below), whose sum is σ = 424480. Its totient is φ = 208656.

The previous prime is 315643. The next prime is 315671. The reversal of 315669 is 966513.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-315669 is a prime.

It is a super-2 number, since 2×315669² = 199293835122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39 + ... + 795.

It is an arithmetic number, because the mean of its divisors is an integer number (53060).

2³¹⁵⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

315669 is a deficient number, since it is larger than the sum of its proper divisors (108811).

315669 is a wasteful number, since it uses less digits than its factorization.

315669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899.

The product of its digits is 4860, while the sum is 30.

The square root of 315669 is about 561.8442844775. The cubic root of 315669 is about 68.0890557515.

The spelling of 315669 in words is "three hundred fifteen thousand, six hundred sixty-nine".