113513749 has 4 divisors (see below), whose sum is σ = 113715936. Its totient is φ = 113311564.

The previous prime is 113513747. The next prime is 113513791. The reversal of 113513749 is 947315311.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 947315311 = 641 ⋅1477871.

It is a cyclic number.

It is not a de Polignac number, because 113513749 - 2¹ = 113513747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113513747) 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 3 ways as a sum of consecutive naturals, for example, 100249 + ... + 101374.

It is an arithmetic number, because the mean of its divisors is an integer number (28428984).

Almost surely, 2^113513749 is an apocalyptic number.

It is an amenable number.

113513749 is a deficient number, since it is larger than the sum of its proper divisors (202187).

113513749 is an equidigital number, since it uses as much as digits as its factorization.

113513749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202186.

The product of its digits is 11340, while the sum is 34.

The square root of 113513749 is about 10654.2831293335. The cubic root of 113513749 is about 484.1903791386.

It can be divided in two parts, 1135 and 13749, that added together give a square (14884 = 122²).

The spelling of 113513749 in words is "one hundred thirteen million, five hundred thirteen thousand, seven hundred forty-nine".