115220516 has 36 divisors (see below), whose sum is σ = 211674708. Its totient is φ = 54857088.

The previous prime is 115220513. The next prime is 115220527. The reversal of 115220516 is 615022511.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 42902500 + 72318016 = 6550^2 + 8504^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115220491 and 115220500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115220513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290030 + ... + 290426.

It is an arithmetic number, because the mean of its divisors is an integer number (5879853).

Almost surely, 2^115220516 is an apocalyptic number.

It is an amenable number.

115220516 is a deficient number, since it is larger than the sum of its proper divisors (96454192).

115220516 is a wasteful number, since it uses less digits than its factorization.

115220516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 115220516 is about 10734.0819821725. The cubic root of 115220516 is about 486.6050427591.

The spelling of 115220516 in words is "one hundred fifteen million, two hundred twenty thousand, five hundred sixteen".