117136513 has 4 divisors (see below), whose sum is σ = 126147028. Its totient is φ = 108126000.

The previous prime is 117136469. The next prime is 117136517. The reversal of 117136513 is 315631711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 315631711 = 199 ⋅1586089.

It can be written as a sum of positive squares in 2 ways, for example, as 21233664 + 95902849 = 4608^2 + 9793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117136513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117136517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4505238 + ... + 4505263.

It is an arithmetic number, because the mean of its divisors is an integer number (31536757).

Almost surely, 2^117136513 is an apocalyptic number.

117136513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

117136513 is a deficient number, since it is larger than the sum of its proper divisors (9010515).

117136513 is an equidigital number, since it uses as much as digits as its factorization.

117136513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9010514.

The product of its digits is 1890, while the sum is 28.

The square root of 117136513 is about 10822.9623024383. The cubic root of 117136513 is about 489.2874733461.

It can be divided in two parts, 117136 and 513, that added together give a 6-th power (117649 = 7⁶).

The spelling of 117136513 in words is "one hundred seventeen million, one hundred thirty-six thousand, five hundred thirteen".