43113137 has 2 divisors, whose sum is σ = 43113138. Its totient is φ = 43113136.

The previous prime is 43113131. The next prime is 43113149. The reversal of 43113137 is 73131134.

43113137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28398241 + 14714896 = 5329^2 + 3836^2 .

It is a cyclic number.

It is not a de Polignac number, because 43113137 - 2⁴ = 43113121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43113131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21556568 + 21556569.

It is an arithmetic number, because the mean of its divisors is an integer number (21556569).

Almost surely, 2^43113137 is an apocalyptic number.

It is an amenable number.

43113137 is a deficient number, since it is larger than the sum of its proper divisors (1).

43113137 is an equidigital number, since it uses as much as digits as its factorization.

43113137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 23.

The square root of 43113137 is about 6566.0594727736. The cubic root of 43113137 is about 350.6467958295.

The spelling of 43113137 in words is "forty-three million, one hundred thirteen thousand, one hundred thirty-seven".