117605515 has 16 divisors (see below), whose sum is σ = 144931968. Its totient is φ = 91570176.

The previous prime is 117605491. The next prime is 117605531. The reversal of 117605515 is 515506711.

It is a cyclic number.

It is not a de Polignac number, because 117605515 - 2¹³ = 117597323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44059 + ... + 46651.

It is an arithmetic number, because the mean of its divisors is an integer number (9058248).

Almost surely, 2^117605515 is an apocalyptic number.

117605515 is a deficient number, since it is larger than the sum of its proper divisors (27326453).

117605515 is a wasteful number, since it uses less digits than its factorization.

117605515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838.

The product of its (nonzero) digits is 5250, while the sum is 31.

The square root of 117605515 is about 10844.6076461991. The cubic root of 117605515 is about 489.9396218816.

The spelling of 117605515 in words is "one hundred seventeen million, six hundred five thousand, five hundred fifteen".