117031517 has 2 divisors, whose sum is σ = 117031518. Its totient is φ = 117031516.

The previous prime is 117031471. The next prime is 117031549. The reversal of 117031517 is 715130711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112763161 + 4268356 = 10619^2 + 2066^2 .

It is an emirp because it is prime and its reverse (715130711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117031517 - 2¹⁰ = 117030493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117001517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58515758 + 58515759.

It is an arithmetic number, because the mean of its divisors is an integer number (58515759).

Almost surely, 2^117031517 is an apocalyptic number.

It is an amenable number.

117031517 is a deficient number, since it is larger than the sum of its proper divisors (1).

117031517 is an equidigital number, since it uses as much as digits as its factorization.

117031517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 735, while the sum is 26.

The square root of 117031517 is about 10818.1106021338. The cubic root of 117031517 is about 489.1412377462.

The spelling of 117031517 in words is "one hundred seventeen million, thirty-one thousand, five hundred seventeen".