113742649 has 4 divisors (see below), whose sum is σ = 113832180. Its totient is φ = 113653120.

The previous prime is 113742647. The next prime is 113742653. The reversal of 113742649 is 946247311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 946247311 = 61 ⋅15512251.

It can be written as a sum of positive squares in 2 ways, for example, as 103225600 + 10517049 = 10160^2 + 3243^2 .

It is a cyclic number.

It is not a de Polignac number, because 113742649 - 2¹ = 113742647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113742641) 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, 42832 + ... + 45409.

It is an arithmetic number, because the mean of its divisors is an integer number (28458045).

Almost surely, 2^113742649 is an apocalyptic number.

It is an amenable number.

113742649 is a deficient number, since it is larger than the sum of its proper divisors (89531).

113742649 is an equidigital number, since it uses as much as digits as its factorization.

113742649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89530.

The product of its digits is 36288, while the sum is 37.

The square root of 113742649 is about 10665.0198780874. The cubic root of 113742649 is about 484.5156165812.

The spelling of 113742649 in words is "one hundred thirteen million, seven hundred forty-two thousand, six hundred forty-nine".