57144943 has 2 divisors, whose sum is σ = 57144944. Its totient is φ = 57144942.

The previous prime is 57144937. The next prime is 57144961. The reversal of 57144943 is 34944175.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57144943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57144643) 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 as a sum of consecutive naturals, namely, 28572471 + 28572472.

It is an arithmetic number, because the mean of its divisors is an integer number (28572472).

Almost surely, 2^57144943 is an apocalyptic number.

57144943 is a deficient number, since it is larger than the sum of its proper divisors (1).

57144943 is an equidigital number, since it uses as much as digits as its factorization.

57144943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 57144943 is about 7559.4274254073. The cubic root of 57144943 is about 385.1760436263.

The spelling of 57144943 in words is "fifty-seven million, one hundred forty-four thousand, nine hundred forty-three".