117504157 has 2 divisors, whose sum is σ = 117504158. Its totient is φ = 117504156.

The previous prime is 117504139. The next prime is 117504173. The reversal of 117504157 is 751405711.

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., 107931321 + 9572836 = 10389^2 + 3094^2 .

It is a cyclic number.

It is not a de Polignac number, because 117504157 - 2⁷ = 117504029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117504137) 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, 58752078 + 58752079.

It is an arithmetic number, because the mean of its divisors is an integer number (58752079).

Almost surely, 2^117504157 is an apocalyptic number.

It is an amenable number.

117504157 is a deficient number, since it is larger than the sum of its proper divisors (1).

117504157 is an equidigital number, since it uses as much as digits as its factorization.

117504157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4900, while the sum is 31.

The square root of 117504157 is about 10839.9334407551. The cubic root of 117504157 is about 489.7988303740.

Adding to 117504157 its reverse (751405711), we get a palindrome (868909868).

The spelling of 117504157 in words is "one hundred seventeen million, five hundred four thousand, one hundred fifty-seven".