117730651 has 4 divisors (see below), whose sum is σ = 118657792. Its totient is φ = 116803512.

The previous prime is 117730643. The next prime is 117730693. The reversal of 117730651 is 156037711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156037711 = 379 ⋅411709.

It is a cyclic number.

It is not a de Polignac number, because 117730651 - 2³ = 117730643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117730601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463380 + ... + 463633.

It is an arithmetic number, because the mean of its divisors is an integer number (29664448).

Almost surely, 2^117730651 is an apocalyptic number.

117730651 is a deficient number, since it is larger than the sum of its proper divisors (927141).

117730651 is an equidigital number, since it uses as much as digits as its factorization.

117730651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927140.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 117730651 is about 10850.3756156181. The cubic root of 117730651 is about 490.1133307206.

The spelling of 117730651 in words is "one hundred seventeen million, seven hundred thirty thousand, six hundred fifty-one".