113513761 has 4 divisors (see below), whose sum is σ = 113560132. Its totient is φ = 113467392.

The previous prime is 113513747. The next prime is 113513791. The reversal of 113513761 is 167315311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 167315311 = 19 ⋅8806069.

It can be written as a sum of positive squares in 2 ways, for example, as 28302400 + 85211361 = 5320^2 + 9231^2 .

It is a cyclic number.

It is not a de Polignac number, because 113513761 - 2⁷ = 113513633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113513791) 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, 19296 + ... + 24481.

It is an arithmetic number, because the mean of its divisors is an integer number (28390033).

It is a 2448-hyperperfect number.

Almost surely, 2^113513761 is an apocalyptic number.

It is an amenable number.

113513761 is a deficient number, since it is larger than the sum of its proper divisors (46371).

113513761 is an equidigital number, since it uses as much as digits as its factorization.

113513761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46370.

The product of its digits is 1890, while the sum is 28.

The square root of 113513761 is about 10654.2836924873. The cubic root of 113513761 is about 484.1903962005.

The spelling of 113513761 in words is "one hundred thirteen million, five hundred thirteen thousand, seven hundred sixty-one".