113513541 has 4 divisors (see below), whose sum is σ = 151351392. Its totient is φ = 75675692.

The previous prime is 113513531. The next prime is 113513549. The reversal of 113513541 is 145315311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113513541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113513549) 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, 18918921 + ... + 18918926.

It is an arithmetic number, because the mean of its divisors is an integer number (37837848).

Almost surely, 2^113513541 is an apocalyptic number.

It is an amenable number.

113513541 is a deficient number, since it is larger than the sum of its proper divisors (37837851).

113513541 is an equidigital number, since it uses as much as digits as its factorization.

113513541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37837850.

The product of its digits is 900, while the sum is 24.

The square root of 113513541 is about 10654.2733679965. The cubic root of 113513541 is about 484.1900833987.

Adding to 113513541 its reverse (145315311), we get a palindrome (258828852).

The spelling of 113513541 in words is "one hundred thirteen million, five hundred thirteen thousand, five hundred forty-one".