115620755 has 4 divisors (see below), whose sum is σ = 138744912. Its totient is φ = 92496600.

The previous prime is 115620751. The next prime is 115620763. The reversal of 115620755 is 557026511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557026511 = 7621 ⋅73091.

It is not a de Polignac number, because 115620755 - 2² = 115620751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115620751) 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, 11562071 + ... + 11562080.

It is an arithmetic number, because the mean of its divisors is an integer number (34686228).

Almost surely, 2^115620755 is an apocalyptic number.

115620755 is a deficient number, since it is larger than the sum of its proper divisors (23124157).

115620755 is an equidigital number, since it uses as much as digits as its factorization.

115620755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23124156.

The product of its (nonzero) digits is 10500, while the sum is 32.

The square root of 115620755 is about 10752.7091935010. The cubic root of 115620755 is about 487.1678280669.

The spelling of 115620755 in words is "one hundred fifteen million, six hundred twenty thousand, seven hundred fifty-five".