115422500 has 60 divisors (see below), whose sum is σ = 255002748. Its totient is φ = 45696000.

The previous prime is 115422491. The next prime is 115422509. The reversal of 115422500 is 5224511.

It is an interprime number because it is at equal distance from previous prime (115422491) and next prime (115422509).

It can be written as a sum of positive squares in 10 ways, for example, as 95726656 + 19695844 = 9784^2 + 4438^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115422509) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 342332 + ... + 342668.

Almost surely, 2^115422500 is an apocalyptic number.

115422500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115422500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127501374).

115422500 is an abundant number, since it is smaller than the sum of its proper divisors (139580248).

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

115422500 is a wasteful number, since it uses less digits than its factorization.

115422500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 115422500 is about 10743.4863987441. The cubic root of 115422500 is about 486.8892197429.

The spelling of 115422500 in words is "one hundred fifteen million, four hundred twenty-two thousand, five hundred".