115720655 has 8 divisors (see below), whose sum is σ = 142251984. Its totient is φ = 90318400.

The previous prime is 115720601. The next prime is 115720667. The reversal of 115720655 is 556027511.

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

It is not a de Polignac number, because 115720655 - 2⁸ = 115720399 is a prime.

It is a Duffinian number.

It is a congruent 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, 282041 + ... + 282450.

It is an arithmetic number, because the mean of its divisors is an integer number (17781498).

Almost surely, 2^115720655 is an apocalyptic number.

115720655 is a deficient number, since it is larger than the sum of its proper divisors (26531329).

115720655 is an equidigital number, since it uses as much as digits as its factorization.

115720655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564537.

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

The square root of 115720655 is about 10757.3535314221. The cubic root of 115720655 is about 487.3080971614.

It can be divided in two parts, 1157 and 20655, that added together give a palindrome (21812).

The spelling of 115720655 in words is "one hundred fifteen million, seven hundred twenty thousand, six hundred fifty-five".