115120613 has 4 divisors (see below), whose sum is σ = 115154688. Its totient is φ = 115086540.

The previous prime is 115120609. The next prime is 115120657. The reversal of 115120613 is 316021511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 316021511 = 13 ⋅24309347.

It is a cyclic number.

It is not a de Polignac number, because 115120613 - 2² = 115120609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115120513) 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, 11333 + ... + 18938.

It is an arithmetic number, because the mean of its divisors is an integer number (28788672).

Almost surely, 2^115120613 is an apocalyptic number.

It is an amenable number.

115120613 is a deficient number, since it is larger than the sum of its proper divisors (34075).

115120613 is an equidigital number, since it uses as much as digits as its factorization.

115120613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34074.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 115120613 is about 10729.4274311354. The cubic root of 115120613 is about 486.4643636444.

The spelling of 115120613 in words is "one hundred fifteen million, one hundred twenty thousand, six hundred thirteen".