117440515 has 4 divisors (see below), whose sum is σ = 140928624. Its totient is φ = 93952408.

The previous prime is 117440509. The next prime is 117440551. The reversal of 117440515 is 515044711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 515044711 = 73 ⋅7055407.

It is a cyclic number.

It is not a de Polignac number, because 117440515 - 2⁵ = 117440483 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11744047 + ... + 11744056.

It is an arithmetic number, because the mean of its divisors is an integer number (35232156).

Almost surely, 2^117440515 is an apocalyptic number.

117440515 is a deficient number, since it is larger than the sum of its proper divisors (23488109).

117440515 is an equidigital number, since it uses as much as digits as its factorization.

117440515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23488108.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 117440515 is about 10836.9975085353. The cubic root of 117440515 is about 489.7103869596.

The spelling of 117440515 in words is "one hundred seventeen million, four hundred forty thousand, five hundred fifteen".