115021533 has 16 divisors (see below), whose sum is σ = 169033536. Its totient is φ = 68989440.

The previous prime is 115021499. The next prime is 115021561. The reversal of 115021533 is 335120511.

It is not a de Polignac number, because 115021533 - 2⁹ = 115021021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115021033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14766 + ... + 21167.

It is an arithmetic number, because the mean of its divisors is an integer number (10564596).

Almost surely, 2^115021533 is an apocalyptic number.

It is an amenable number.

115021533 is a deficient number, since it is larger than the sum of its proper divisors (54012003).

115021533 is a wasteful number, since it uses less digits than its factorization.

115021533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36044.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 115021533 is about 10724.8092290726. The cubic root of 115021533 is about 486.3247630344.

The spelling of 115021533 in words is "one hundred fifteen million, twenty-one thousand, five hundred thirty-three".