115981374 has 64 divisors (see below), whose sum is σ = 247484160. Its totient is φ = 36192000.

The previous prime is 115981367. The next prime is 115981381. The reversal of 115981374 is 473189511.

It is an interprime number because it is at equal distance from previous prime (115981367) and next prime (115981381).

It is a super-2 number, since 2×115981374² = 26903358229855752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 885289 + ... + 885419.

It is an arithmetic number, because the mean of its divisors is an integer number (3866940).

Almost surely, 2^115981374 is an apocalyptic number.

115981374 is an abundant number, since it is smaller than the sum of its proper divisors (131502786).

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

115981374 is a wasteful number, since it uses less digits than its factorization.

115981374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its digits is 30240, while the sum is 39.

The square root of 115981374 is about 10769.4648892134. The cubic root of 115981374 is about 487.6737915542.

The spelling of 115981374 in words is "one hundred fifteen million, nine hundred eighty-one thousand, three hundred seventy-four".