117251965 has 8 divisors (see below), whose sum is σ = 141059160. Its totient is φ = 93563712.

The previous prime is 117251963. The next prime is 117251969. The reversal of 117251965 is 569152711.

It can be written as a sum of positive squares in 4 ways, for example, as 31337604 + 85914361 = 5598^2 + 9269^2 .

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 117251965 - 2¹ = 117251963 is a prime.

It is a super-2 number, since 2×117251965² = 27496046592722450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117251963) 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, 27550 + ... + 31519.

It is an arithmetic number, because the mean of its divisors is an integer number (17632395).

Almost surely, 2^117251965 is an apocalyptic number.

It is an amenable number.

117251965 is a deficient number, since it is larger than the sum of its proper divisors (23807195).

117251965 is an equidigital number, since it uses as much as digits as its factorization.

117251965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59471.

The product of its digits is 18900, while the sum is 37.

The square root of 117251965 is about 10828.2946487432. The cubic root of 117251965 is about 489.4481709434.

The spelling of 117251965 in words is "one hundred seventeen million, two hundred fifty-one thousand, nine hundred sixty-five".