117651901 has 8 divisors (see below), whose sum is σ = 119073024. Its totient is φ = 116239200.

The previous prime is 117651893. The next prime is 117651907. The reversal of 117651901 is 109156711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117651901 - 2³ = 117651893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117651907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28626 + ... + 32476.

It is an arithmetic number, because the mean of its divisors is an integer number (14884128).

Almost surely, 2^117651901 is an apocalyptic number.

It is an amenable number.

117651901 is a deficient number, since it is larger than the sum of its proper divisors (1421123).

117651901 is a wasteful number, since it uses less digits than its factorization.

117651901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211.

The product of its (nonzero) digits is 1890, while the sum is 31.

The square root of 117651901 is about 10846.7461019423. The cubic root of 117651901 is about 490.0040274554.

The spelling of 117651901 in words is "one hundred seventeen million, six hundred fifty-one thousand, nine hundred one".