117601831 has 2 divisors, whose sum is σ = 117601832. Its totient is φ = 117601830.

The previous prime is 117601819. The next prime is 117601837. The reversal of 117601831 is 138106711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117601831 - 2²¹ = 115504679 is a prime.

It is a super-2 number, since 2×117601831² = 27660381309105122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117601831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117601837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58800915 + 58800916.

It is an arithmetic number, because the mean of its divisors is an integer number (58800916).

Almost surely, 2^117601831 is an apocalyptic number.

117601831 is a deficient number, since it is larger than the sum of its proper divisors (1).

117601831 is an equidigital number, since it uses as much as digits as its factorization.

117601831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 117601831 is about 10844.4377908677. The cubic root of 117601831 is about 489.9345060319.

The spelling of 117601831 in words is "one hundred seventeen million, six hundred one thousand, eight hundred thirty-one".