226156977 has 6 divisors (see below), whose sum is σ = 326671202. Its totient is φ = 150771312.

The previous prime is 226156969. The next prime is 226156991. The reversal of 226156977 is 779651622.

226156977 is a `hidden beast` number, since 22 + 61 + 569 + 7 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 205033761 + 21123216 = 14319^2 + 4596^2 .

It is not a de Polignac number, because 226156977 - 2³ = 226156969 is a prime.

It is a super-2 number, since 2×226156977² = 102293956491557058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226156477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12564268 + ... + 12564285.

Almost surely, 2^226156977 is an apocalyptic number.

It is an amenable number.

226156977 is a deficient number, since it is larger than the sum of its proper divisors (100514225).

226156977 is a wasteful number, since it uses less digits than its factorization.

226156977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25128559 (or 25128556 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 226156977 is about 15038.5164494374. The cubic root of 226156977 is about 609.2609314852.

It can be divided in two parts, 22615 and 6977, that added together give a palindrome (29592).

The spelling of 226156977 in words is "two hundred twenty-six million, one hundred fifty-six thousand, nine hundred seventy-seven".