115005620 has 24 divisors (see below), whose sum is σ = 248040744. Its totient is φ = 44758656.

The previous prime is 115005617. The next prime is 115005659. The reversal of 115005620 is 26500511.

It can be written as a sum of positive squares in 4 ways, for example, as 10679824 + 104325796 = 3268^2 + 10214^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 115005592 and 115005601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76967 + ... + 78446.

It is an arithmetic number, because the mean of its divisors is an integer number (10335031).

Almost surely, 2^115005620 is an apocalyptic number.

115005620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115005620 is an abundant number, since it is smaller than the sum of its proper divisors (133035124).

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

115005620 is a wasteful number, since it uses less digits than its factorization.

115005620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155459 (or 155457 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 115005620 is about 10724.0673254134. The cubic root of 115005620 is about 486.3023346459.

The spelling of 115005620 in words is "one hundred fifteen million, five thousand, six hundred twenty".