113243737 has 4 divisors (see below), whose sum is σ = 113265460. Its totient is φ = 113222016.

The previous prime is 113243729. The next prime is 113243759. The reversal of 113243737 is 737342311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 737342311 = 14281 ⋅51631.

It can be written as a sum of positive squares in 2 ways, for example, as 88003161 + 25240576 = 9381^2 + 5024^2 .

It is a 3-Lehmer number, since φ(113243737) divides (113243737-1)³.

It is a cyclic number.

It is not a de Polignac number, because 113243737 - 2³ = 113243729 is a prime.

It is a deceptive number, since it divides R_113243736.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113243699 and 113243708.

It is not an unprimeable number, because it can be changed into a prime (113243707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2173 + ... + 15205.

It is an arithmetic number, because the mean of its divisors is an integer number (28316365).

Almost surely, 2^113243737 is an apocalyptic number.

113243737 is the 8689-th pentagonal number.

It is an amenable number.

113243737 is a deficient number, since it is larger than the sum of its proper divisors (21723).

113243737 is an equidigital number, since it uses as much as digits as its factorization.

113243737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21722.

The product of its digits is 10584, while the sum is 31.

The square root of 113243737 is about 10641.6040614186. The cubic root of 113243737 is about 483.8061642709.

The spelling of 113243737 in words is "one hundred thirteen million, two hundred forty-three thousand, seven hundred thirty-seven".