115570820 has 24 divisors (see below), whose sum is σ = 244556928. Its totient is φ = 45874400.

The previous prime is 115570817. The next prime is 115570823. The reversal of 115570820 is 28075511.

It is an interprime number because it is at equal distance from previous prime (115570817) and next prime (115570823).

It is a super-2 number, since 2×115570820² = 26713228870944800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115570823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19436 + ... + 24675.

It is an arithmetic number, because the mean of its divisors is an integer number (10189872).

Almost surely, 2^115570820 is an apocalyptic number.

115570820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115570820 is an abundant number, since it is smaller than the sum of its proper divisors (128986108).

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

115570820 is a wasteful number, since it uses less digits than its factorization.

115570820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44251 (or 44249 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 115570820 is about 10750.3869697793. The cubic root of 115570820 is about 487.0976842925.

The spelling of 115570820 in words is "one hundred fifteen million, five hundred seventy thousand, eight hundred twenty".