27220131 has 14 divisors (see below), whose sum is σ = 40812620. Its totient is φ = 18146268.

The previous prime is 27220129. The next prime is 27220147. The reversal of 27220131 is 13102272.

It is not a de Polignac number, because 27220131 - 2¹ = 27220129 is a prime.

It is a super-2 number, since 2×27220131² = 1481871063314322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27220121) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 17941 + ... + 19398.

Almost surely, 2^27220131 is an apocalyptic number.

27220131 is a deficient number, since it is larger than the sum of its proper divisors (13592489).

27220131 is an frugal number, since it uses more digits than its factorization.

27220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37357 (or 37342 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 27220131 is about 5217.2915387201. The cubic root of 27220131 is about 300.8130942681.

The spelling of 27220131 in words is "twenty-seven million, two hundred twenty thousand, one hundred thirty-one".