113272581 has 8 divisors (see below), whose sum is σ = 159914304. Its totient is φ = 71072960.

The previous prime is 113272553. The next prime is 113272583. The reversal of 113272581 is 185272311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113272581 is a prime.

It is a super-2 number, since 2×113272581² = 25661355212803122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113272583) 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, 1110465 + ... + 1110566.

It is an arithmetic number, because the mean of its divisors is an integer number (19989288).

Almost surely, 2^113272581 is an apocalyptic number.

It is an amenable number.

113272581 is a deficient number, since it is larger than the sum of its proper divisors (46641723).

113272581 is a wasteful number, since it uses less digits than its factorization.

113272581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221051.

The product of its digits is 3360, while the sum is 30.

The square root of 113272581 is about 10642.9592219457. The cubic root of 113272581 is about 483.8472370953.

The spelling of 113272581 in words is "one hundred thirteen million, two hundred seventy-two thousand, five hundred eighty-one".