117529537 has 2 divisors, whose sum is σ = 117529538. Its totient is φ = 117529536.

The previous prime is 117529523. The next prime is 117529543. The reversal of 117529537 is 735925711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113018161 + 4511376 = 10631^2 + 2124^2 .

It is a cyclic number.

It is not a de Polignac number, because 117529537 - 2²³ = 109140929 is a prime.

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 117529537.

It is not a weakly prime, because it can be changed into another prime (117529507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58764768 + 58764769.

It is an arithmetic number, because the mean of its divisors is an integer number (58764769).

Almost surely, 2^117529537 is an apocalyptic number.

It is an amenable number.

117529537 is a deficient number, since it is larger than the sum of its proper divisors (1).

117529537 is an equidigital number, since it uses as much as digits as its factorization.

117529537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 40.

The square root of 117529537 is about 10841.1040489426. The cubic root of 117529537 is about 489.8340921035.

The spelling of 117529537 in words is "one hundred seventeen million, five hundred twenty-nine thousand, five hundred thirty-seven".