115245621 has 12 divisors (see below), whose sum is σ = 175227520. Its totient is φ = 72786600.

The previous prime is 115245607. The next prime is 115245673. The reversal of 115245621 is 126542511.

115245621 is a `hidden beast` number, since 1 + 15 + 24 + 5 + 621 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-115245621 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 (115245421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336805 + ... + 337146.

Almost surely, 2^115245621 is an apocalyptic number.

It is an amenable number.

115245621 is a deficient number, since it is larger than the sum of its proper divisors (59981899).

115245621 is a wasteful number, since it uses less digits than its factorization.

115245621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673976 (or 673973 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 115245621 is about 10735.2513244917. The cubic root of 115245621 is about 486.6403817563.

The spelling of 115245621 in words is "one hundred fifteen million, two hundred forty-five thousand, six hundred twenty-one".