113045621 has 24 divisors (see below), whose sum is σ = 129300480. Its totient is φ = 98594496.

The previous prime is 113045609. The next prime is 113045633. The reversal of 113045621 is 126540311.

It is an interprime number because it is at equal distance from previous prime (113045609) and next prime (113045633).

It is not a de Polignac number, because 113045621 - 2⁶ = 113045557 is a prime.

It is a super-3 number, since 3×113045621³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113045021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493535 + ... + 493763.

It is an arithmetic number, because the mean of its divisors is an integer number (5387520).

Almost surely, 2^113045621 is an apocalyptic number.

It is an amenable number.

113045621 is a deficient number, since it is larger than the sum of its proper divisors (16254859).

113045621 is a wasteful number, since it uses less digits than its factorization.

113045621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 113045621 is about 10632.2914275334. The cubic root of 113045621 is about 483.5238655341.

Adding to 113045621 its reverse (126540311), we get a palindrome (239585932).

The spelling of 113045621 in words is "one hundred thirteen million, forty-five thousand, six hundred twenty-one".