117558457 has 4 divisors (see below), whose sum is σ = 117584676. Its totient is φ = 117532240.

The previous prime is 117558433. The next prime is 117558559. The reversal of 117558457 is 754855711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76457536 + 41100921 = 8744^2 + 6411^2 .

It is a cyclic number.

It is not a de Polignac number, because 117558457 - 2¹¹ = 117556409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117558157) 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 in 3 ways as a sum of consecutive naturals, for example, 4498 + ... + 15979.

It is an arithmetic number, because the mean of its divisors is an integer number (29396169).

Almost surely, 2^117558457 is an apocalyptic number.

It is an amenable number.

117558457 is a deficient number, since it is larger than the sum of its proper divisors (26219).

117558457 is an equidigital number, since it uses as much as digits as its factorization.

117558457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26218.

The product of its digits is 196000, while the sum is 43.

The square root of 117558457 is about 10842.4377793926. The cubic root of 117558457 is about 489.8742659485.

The spelling of 117558457 in words is "one hundred seventeen million, five hundred fifty-eight thousand, four hundred fifty-seven".