227812131 has 12 divisors (see below), whose sum is σ = 329208880. Its totient is φ = 151806960.

The previous prime is 227812129. The next prime is 227812153. The reversal of 227812131 is 131218722.

It is not a de Polignac number, because 227812131 - 2¹ = 227812129 is a prime.

It is a super-2 number, since 2×227812131² = 103796734061522322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 227812095 and 227812104.

It is not an unprimeable number, because it can be changed into a prime (227812111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23601 + ... + 31821.

Almost surely, 2^227812131 is an apocalyptic number.

227812131 is a deficient number, since it is larger than the sum of its proper divisors (101396749).

227812131 is a wasteful number, since it uses less digits than its factorization.

227812131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11306 (or 11303 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 227812131 is about 15093.4466242804. The cubic root of 227812131 is about 610.7436339822.

The spelling of 227812131 in words is "two hundred twenty-seven million, eight hundred twelve thousand, one hundred thirty-one".