115212564 has 48 divisors (see below), whose sum is σ = 301470400. Its totient is φ = 38047968.

The previous prime is 115212533. The next prime is 115212569. The reversal of 115212564 is 465212511.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115212569) 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 15 ways as a sum of consecutive naturals, for example, 6879 + ... + 16665.

Almost surely, 2^115212564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115212564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150735200).

115212564 is an abundant number, since it is smaller than the sum of its proper divisors (186257836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115212564 is a wasteful number, since it uses less digits than its factorization.

115212564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9909 (or 9901 counting only the distinct ones).

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

The square root of 115212564 is about 10733.7115668347. The cubic root of 115212564 is about 486.5938480736.

The spelling of 115212564 in words is "one hundred fifteen million, two hundred twelve thousand, five hundred sixty-four".