113749971 has 4 divisors (see below), whose sum is σ = 151666632. Its totient is φ = 75833312.

The previous prime is 113749957. The next prime is 113749997. The reversal of 113749971 is 179947311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179947311 = 3 ⋅59982437.

It is a cyclic number.

It is not a de Polignac number, because 113749971 - 2⁵ = 113749939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113749271) 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, 18958326 + ... + 18958331.

It is an arithmetic number, because the mean of its divisors is an integer number (37916658).

Almost surely, 2^113749971 is an apocalyptic number.

113749971 is a deficient number, since it is larger than the sum of its proper divisors (37916661).

113749971 is an equidigital number, since it uses as much as digits as its factorization.

113749971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37916660.

The product of its digits is 47628, while the sum is 42.

The square root of 113749971 is about 10665.3631443097. The cubic root of 113749971 is about 484.5260129958.

The spelling of 113749971 in words is "one hundred thirteen million, seven hundred forty-nine thousand, nine hundred seventy-one".