117151869 has 4 divisors (see below), whose sum is σ = 156202496. Its totient is φ = 78101244.

The previous prime is 117151861. The next prime is 117151901. The reversal of 117151869 is 968151711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 117151869 - 2³ = 117151861 is a prime.

It is a super-2 number, since 2×117151869² = 27449120820386322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117151861) 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, 19525309 + ... + 19525314.

It is an arithmetic number, because the mean of its divisors is an integer number (39050624).

Almost surely, 2^117151869 is an apocalyptic number.

It is an amenable number.

117151869 is a deficient number, since it is larger than the sum of its proper divisors (39050627).

117151869 is an equidigital number, since it uses as much as digits as its factorization.

117151869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39050626.

The product of its digits is 15120, while the sum is 39.

The square root of 117151869 is about 10823.6716967949. The cubic root of 117151869 is about 489.3088534434.

The spelling of 117151869 in words is "one hundred seventeen million, one hundred fifty-one thousand, eight hundred sixty-nine".