115980381 has 24 divisors (see below), whose sum is σ = 183104064. Its totient is φ = 70157760.

The previous prime is 115980343. The next prime is 115980383. The reversal of 115980381 is 183089511.

It is not a de Polignac number, because 115980381 - 2⁶ = 115980317 is a prime.

It is a super-3 number, since 3×115980381³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115980383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84160 + ... + 85526.

It is an arithmetic number, because the mean of its divisors is an integer number (7629336).

Almost surely, 2^115980381 is an apocalyptic number.

115980381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115980381 is a deficient number, since it is larger than the sum of its proper divisors (67123683).

115980381 is a wasteful number, since it uses less digits than its factorization.

115980381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 115980381 is about 10769.4187865455. The cubic root of 115980381 is about 487.6723997748.

The spelling of 115980381 in words is "one hundred fifteen million, nine hundred eighty thousand, three hundred eighty-one".