115541980 has 48 divisors (see below), whose sum is σ = 250459776. Its totient is φ = 44748800.

The previous prime is 115541971. The next prime is 115541999. The reversal of 115541980 is 89145511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94332 + ... + 95548.

It is an arithmetic number, because the mean of its divisors is an integer number (5217912).

Almost surely, 2^115541980 is an apocalyptic number.

115541980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115541980 is an abundant number, since it is smaller than the sum of its proper divisors (134917796).

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

115541980 is a wasteful number, since it uses less digits than its factorization.

115541980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374 (or 1372 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 115541980 is about 10749.0455390235. The cubic root of 115541980 is about 487.0571634935.

The spelling of 115541980 in words is "one hundred fifteen million, five hundred forty-one thousand, nine hundred eighty".