43113557 has 2 divisors, whose sum is σ = 43113558. Its totient is φ = 43113556.

The previous prime is 43113487. The next prime is 43113583. The reversal of 43113557 is 75531134.

43113557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29170801 + 13942756 = 5401^2 + 3734^2 .

It is a cyclic number.

It is not a de Polignac number, because 43113557 - 2¹⁶ = 43048021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43113457) 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, 21556778 + 21556779.

It is an arithmetic number, because the mean of its divisors is an integer number (21556779).

Almost surely, 2^43113557 is an apocalyptic number.

It is an amenable number.

43113557 is a deficient number, since it is larger than the sum of its proper divisors (1).

43113557 is an equidigital number, since it uses as much as digits as its factorization.

43113557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 29.

The square root of 43113557 is about 6566.0914553485. The cubic root of 43113557 is about 350.6479344706.

The spelling of 43113557 in words is "forty-three million, one hundred thirteen thousand, five hundred fifty-seven".