113125621 has 8 divisors (see below), whose sum is σ = 130542464. Its totient is φ = 96022800.

The previous prime is 113125619. The next prime is 113125627. The reversal of 113125621 is 126521311.

It is a happy number.

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 113125621 - 2¹ = 113125619 is a prime.

It is a super-2 number, since 2×113125621² = 25594812253271282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113125592 and 113125601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113125627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77730 + ... + 79171.

It is an arithmetic number, because the mean of its divisors is an integer number (16317808).

Almost surely, 2^113125621 is an apocalyptic number.

It is an amenable number.

113125621 is a deficient number, since it is larger than the sum of its proper divisors (17416843).

113125621 is a wasteful number, since it uses less digits than its factorization.

113125621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157011.

The product of its digits is 360, while the sum is 22.

The square root of 113125621 is about 10636.0528862920. The cubic root of 113125621 is about 483.6378985169.

Adding to 113125621 its reverse (126521311), we get a palindrome (239646932).

The spelling of 113125621 in words is "one hundred thirteen million, one hundred twenty-five thousand, six hundred twenty-one".