117305515 has 8 divisors (see below), whose sum is σ = 141504768. Its totient is φ = 93352320.

The previous prime is 117305509. The next prime is 117305521. The reversal of 117305515 is 515503711.

It is an interprime number because it is at equal distance from previous prime (117305509) and next prime (117305521).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117305515 - 2⁹ = 117305003 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60462 + ... + 62371.

It is an arithmetic number, because the mean of its divisors is an integer number (17688096).

Almost surely, 2^117305515 is an apocalyptic number.

117305515 is a deficient number, since it is larger than the sum of its proper divisors (24199253).

117305515 is a wasteful number, since it uses less digits than its factorization.

117305515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123029.

The product of its (nonzero) digits is 2625, while the sum is 28.

The square root of 117305515 is about 10830.7670550151. The cubic root of 117305515 is about 489.5226713593.

The spelling of 117305515 in words is "one hundred seventeen million, three hundred five thousand, five hundred fifteen".