115506100 has 18 divisors (see below), whose sum is σ = 250648454. Its totient is φ = 46202400.

The previous prime is 115506089. The next prime is 115506121. The reversal of 115506100 is 1605511.

It can be written as a sum of positive squares in 3 ways, for example, as 29584 + 115476516 = 172^2 + 10746^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 577431 + ... + 577630.

Almost surely, 2^115506100 is an apocalyptic number.

115506100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115506100 is an abundant number, since it is smaller than the sum of its proper divisors (135142354).

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

115506100 is a wasteful number, since it uses less digits than its factorization.

115506100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155075 (or 1155068 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 115506100 is about 10747.3764240395. The cubic root of 115506100 is about 487.0067419345.

The spelling of 115506100 in words is "one hundred fifteen million, five hundred six thousand, one hundred".