115515433 has 12 divisors (see below), whose sum is σ = 127310260. Its totient is φ = 104734080.

The previous prime is 115515431. The next prime is 115515473. The reversal of 115515433 is 334515511.

It can be written as a sum of positive squares in 2 ways, for example, as 100861849 + 14653584 = 10043^2 + 3828^2 .

It is not a de Polignac number, because 115515433 - 2¹ = 115515431 is a prime.

It is a super-2 number, since 2×115515433² = 26687630522354978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115515431) 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, 54253 + ... + 56341.

Almost surely, 2^115515433 is an apocalyptic number.

It is an amenable number.

115515433 is a deficient number, since it is larger than the sum of its proper divisors (11794827).

115515433 is a wasteful number, since it uses less digits than its factorization.

115515433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568 (or 2557 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 115515433 is about 10747.8106142600. The cubic root of 115515433 is about 487.0198584467.

The spelling of 115515433 in words is "one hundred fifteen million, five hundred fifteen thousand, four hundred thirty-three".