115520949 has 12 divisors (see below), whose sum is σ = 172617900. Its totient is φ = 74358144.

The previous prime is 115520929. The next prime is 115520953. The reversal of 115520949 is 949025511.

115520949 is a `hidden beast` number, since 11 + 552 + 0 + 94 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 64112049 + 51408900 = 8007^2 + 7170^2 .

It is a de Polignac number, because none of the positive numbers 2^k-115520949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115520929) 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, 221044 + ... + 221565.

It is an arithmetic number, because the mean of its divisors is an integer number (14384825).

Almost surely, 2^115520949 is an apocalyptic number.

It is an amenable number.

115520949 is a deficient number, since it is larger than the sum of its proper divisors (57096951).

115520949 is a wasteful number, since it uses less digits than its factorization.

115520949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442644 (or 442641 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 115520949 is about 10748.0672215985. The cubic root of 115520949 is about 487.0276102501.

The spelling of 115520949 in words is "one hundred fifteen million, five hundred twenty thousand, nine hundred forty-nine".