117761021 has 8 divisors (see below), whose sum is σ = 134827584. Its totient is φ = 100755360.

The previous prime is 117761011. The next prime is 117761027. The reversal of 117761021 is 120167711.

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 117761021 - 2⁶ = 117760957 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 (117761027) 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, 11000 + ... + 18881.

It is an arithmetic number, because the mean of its divisors is an integer number (16853448).

Almost surely, 2^117761021 is an apocalyptic number.

It is an amenable number.

117761021 is a deficient number, since it is larger than the sum of its proper divisors (17066563).

117761021 is an equidigital number, since it uses as much as digits as its factorization.

117761021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30451.

The product of its (nonzero) digits is 588, while the sum is 26.

The square root of 117761021 is about 10851.7750160976. The cubic root of 117761021 is about 490.1554705883.

The spelling of 117761021 in words is "one hundred seventeen million, seven hundred sixty-one thousand, twenty-one".