117227961 has 6 divisors (see below), whose sum is σ = 169329290. Its totient is φ = 78151968.

The previous prime is 117227921. The next prime is 117227977. The reversal of 117227961 is 169722711.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 115154361 + 2073600 = 10731^2 + 1440^2 .

It is not a de Polignac number, because 117227961 - 2⁹ = 117227449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117227921) 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, 6512656 + ... + 6512673.

Almost surely, 2^117227961 is an apocalyptic number.

It is an amenable number.

117227961 is a deficient number, since it is larger than the sum of its proper divisors (52101329).

117227961 is a wasteful number, since it uses less digits than its factorization.

117227961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13025335 (or 13025332 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The square root of 117227961 is about 10827.1861995627. The cubic root of 117227961 is about 489.4147684734.

It can be divided in two parts, 11722 and 7961, that added together give a 9-th power (19683 = 3⁹).

The spelling of 117227961 in words is "one hundred seventeen million, two hundred twenty-seven thousand, nine hundred sixty-one".