115385971 has 4 divisors (see below), whose sum is σ = 115966000. Its totient is φ = 114805944.

The previous prime is 115385957. The next prime is 115385981. The reversal of 115385971 is 179583511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179583511 = 79 ⋅2273209.

It is a cyclic number.

It is not a de Polignac number, because 115385971 - 2⁵ = 115385939 is a prime.

It is a super-2 number, since 2×115385971² = 26627844607225682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115385951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289716 + ... + 290113.

It is an arithmetic number, because the mean of its divisors is an integer number (28991500).

Almost surely, 2^115385971 is an apocalyptic number.

115385971 is a deficient number, since it is larger than the sum of its proper divisors (580029).

115385971 is an equidigital number, since it uses as much as digits as its factorization.

115385971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580028.

The product of its digits is 37800, while the sum is 40.

The square root of 115385971 is about 10741.7862108683. The cubic root of 115385971 is about 486.8378506340.

The spelling of 115385971 in words is "one hundred fifteen million, three hundred eighty-five thousand, nine hundred seventy-one".