117163031 has 4 divisors (see below), whose sum is σ = 124054992. Its totient is φ = 110271072.

The previous prime is 117163027. The next prime is 117163061. The reversal of 117163031 is 130361711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130361711 = 109 ⋅1195979.

It is a cyclic number.

It is not a de Polignac number, because 117163031 - 2² = 117163027 is a prime.

It is a super-2 number, since 2×117163031² = 27454351666213922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117162988 and 117163006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117163061) 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, 3445955 + ... + 3445988.

It is an arithmetic number, because the mean of its divisors is an integer number (31013748).

Almost surely, 2^117163031 is an apocalyptic number.

117163031 is a deficient number, since it is larger than the sum of its proper divisors (6891961).

117163031 is an equidigital number, since it uses as much as digits as its factorization.

117163031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6891960.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 117163031 is about 10824.1873136047. The cubic root of 117163031 is about 489.3243930788.

The spelling of 117163031 in words is "one hundred seventeen million, one hundred sixty-three thousand, thirty-one".