214995531 has 16 divisors (see below), whose sum is σ = 302860800. Its totient is φ = 135440928.

The previous prime is 214995523. The next prime is 214995541. The reversal of 214995531 is 135599412.

It is not a de Polignac number, because 214995531 - 2³ = 214995523 is a prime.

It is a super-2 number, since 2×214995531² = 92446156699943922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 214995531.

It is not an unprimeable number, because it can be changed into a prime (214995511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22201 + ... + 30378.

It is an arithmetic number, because the mean of its divisors is an integer number (18928800).

Almost surely, 2^214995531 is an apocalyptic number.

214995531 is a deficient number, since it is larger than the sum of its proper divisors (87865269).

214995531 is a wasteful number, since it uses less digits than its factorization.

214995531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52658.

The product of its digits is 48600, while the sum is 39.

The square root of 214995531 is about 14662.7259061881. The cubic root of 214995531 is about 599.0684906768.

The spelling of 214995531 in words is "two hundred fourteen million, nine hundred ninety-five thousand, five hundred thirty-one".