113487871 has 6 divisors (see below), whose sum is σ = 132016560. Its totient is φ = 97275276.

The previous prime is 113487863. The next prime is 113487889. The reversal of 113487871 is 178784311.

It is not a de Polignac number, because 113487871 - 2³ = 113487863 is a prime.

It is a super-2 number, since 2×113487871² = 25758993728225282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113487841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1157991 + ... + 1158088.

It is an arithmetic number, because the mean of its divisors is an integer number (22002760).

Almost surely, 2^113487871 is an apocalyptic number.

113487871 is a deficient number, since it is larger than the sum of its proper divisors (18528689).

113487871 is an equidigital number, since it uses as much as digits as its factorization.

113487871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316093 (or 2316086 counting only the distinct ones).

The product of its digits is 37632, while the sum is 40.

The square root of 113487871 is about 10653.0686189473. The cubic root of 113487871 is about 484.1535823306.

The spelling of 113487871 in words is "one hundred thirteen million, four hundred eighty-seven thousand, eight hundred seventy-one".