113255981 has 8 divisors (see below), whose sum is σ = 116169144. Its totient is φ = 110350080.

The previous prime is 113255977. The next prime is 113255993. The reversal of 113255981 is 189552311.

It can be written as a sum of positive squares in 4 ways, for example, as 259081 + 112996900 = 509^2 + 10630^2 .

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 113255981 - 2² = 113255977 is a prime.

It is a super-3 number, since 3×113255981³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113255951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44561 + ... + 47033.

It is an arithmetic number, because the mean of its divisors is an integer number (14521143).

Almost surely, 2^113255981 is an apocalyptic number.

It is an amenable number.

113255981 is a deficient number, since it is larger than the sum of its proper divisors (2913163).

113255981 is a wasteful number, since it uses less digits than its factorization.

113255981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631.

The product of its digits is 10800, while the sum is 35.

The square root of 113255981 is about 10642.1793350798. The cubic root of 113255981 is about 483.8236001408.

The spelling of 113255981 in words is "one hundred thirteen million, two hundred fifty-five thousand, nine hundred eighty-one".