117901553 has 12 divisors (see below), whose sum is σ = 148108800. Its totient is φ = 91870680.

The previous prime is 117901547. The next prime is 117901591. The reversal of 117901553 is 355109711.

It is a happy number.

It is not a de Polignac number, because 117901553 - 2⁶ = 117901489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117901513) 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, 68753 + ... + 70446.

It is an arithmetic number, because the mean of its divisors is an integer number (12342400).

Almost surely, 2^117901553 is an apocalyptic number.

It is an amenable number.

117901553 is a deficient number, since it is larger than the sum of its proper divisors (30207247).

117901553 is a wasteful number, since it uses less digits than its factorization.

117901553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139228 (or 139217 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 32.

The square root of 117901553 is about 10858.2481552044. The cubic root of 117901553 is about 490.3503713725.

The spelling of 117901553 in words is "one hundred seventeen million, nine hundred one thousand, five hundred fifty-three".