113909871 has 8 divisors (see below), whose sum is σ = 153039744. Its totient is φ = 75359960.

The previous prime is 113909839. The next prime is 113909893. The reversal of 113909871 is 178909311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113909871 - 2⁵ = 113909839 is a prime.

It is a super-2 number, since 2×113909871² = 25950917422473282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113909171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144531 + ... + 145316.

It is an arithmetic number, because the mean of its divisors is an integer number (19129968).

Almost surely, 2^113909871 is an apocalyptic number.

113909871 is a deficient number, since it is larger than the sum of its proper divisors (39129873).

113909871 is a wasteful number, since it uses less digits than its factorization.

113909871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289981.

The product of its (nonzero) digits is 13608, while the sum is 39.

The square root of 113909871 is about 10672.8567403484. The cubic root of 113909871 is about 484.7529418006.

The spelling of 113909871 in words is "one hundred thirteen million, nine hundred nine thousand, eight hundred seventy-one".