115074721 has 4 divisors (see below), whose sum is σ = 117025200. Its totient is φ = 113124244.

The previous prime is 115074671. The next prime is 115074733. The reversal of 115074721 is 127470511.

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.

It is a cyclic number.

It is not a de Polignac number, because 115074721 - 2⁷ = 115074593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115074721.

It is not an unprimeable number, because it can be changed into a prime (115074761) 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, 975151 + ... + 975268.

It is an arithmetic number, because the mean of its divisors is an integer number (29256300).

Almost surely, 2^115074721 is an apocalyptic number.

It is an amenable number.

115074721 is a deficient number, since it is larger than the sum of its proper divisors (1950479).

115074721 is an equidigital number, since it uses as much as digits as its factorization.

115074721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950478.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 115074721 is about 10727.2886136246. The cubic root of 115074721 is about 486.3997132191.

The spelling of 115074721 in words is "one hundred fifteen million, seventy-four thousand, seven hundred twenty-one".