117512761 has 2 divisors, whose sum is σ = 117512762. Its totient is φ = 117512760.

The previous prime is 117512753. The next prime is 117512767. The reversal of 117512761 is 167215711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79923600 + 37589161 = 8940^2 + 6131^2 .

It is a cyclic number.

It is not a de Polignac number, because 117512761 - 2³ = 117512753 is a prime.

It is not a weakly prime, because it can be changed into another prime (117512767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58756380 + 58756381.

It is an arithmetic number, because the mean of its divisors is an integer number (58756381).

Almost surely, 2^117512761 is an apocalyptic number.

It is an amenable number.

117512761 is a deficient number, since it is larger than the sum of its proper divisors (1).

117512761 is an equidigital number, since it uses as much as digits as its factorization.

117512761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2940, while the sum is 31.

The square root of 117512761 is about 10840.3302993959. The cubic root of 117512761 is about 489.8107849192.

The spelling of 117512761 in words is "one hundred seventeen million, five hundred twelve thousand, seven hundred sixty-one".