113951 has 4 divisors (see below), whose sum is σ = 120672. Its totient is φ = 107232.

The previous prime is 113947. The next prime is 113957. The reversal of 113951 is 159311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113951 - 2² = 113947 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113957) 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, 3335 + ... + 3368.

It is an arithmetic number, because the mean of its divisors is an integer number (30168).

2¹¹³⁹⁵¹ is an apocalyptic number.

113951 is a deficient number, since it is larger than the sum of its proper divisors (6721).

113951 is an equidigital number, since it uses as much as digits as its factorization.

113951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720.

The product of its digits is 135, while the sum is 20.

The square root of 113951 is about 337.5662897862. The cubic root of 113951 is about 48.4811277408.

The spelling of 113951 in words is "one hundred thirteen thousand, nine hundred fifty-one".