1057375439 has 2 divisors, whose sum is σ = 1057375440. Its totient is φ = 1057375438.

The previous prime is 1057375349. The next prime is 1057375471. The reversal of 1057375439 is 9345737501.

Together with previous prime (1057375349) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1057375439 is a prime.

It is a super-2 number, since 2×1057375439² = 2236085638000885442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1057375439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1057375489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528687719 + 528687720.

It is an arithmetic number, because the mean of its divisors is an integer number (528687720).

Almost surely, 2^1057375439 is an apocalyptic number.

1057375439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057375439 is an equidigital number, since it uses as much as digits as its factorization.

1057375439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 44.

The square root of 1057375439 is about 32517.3098364548. The cubic root of 1057375439 is about 1018.7706061598.

The spelling of 1057375439 in words is "one billion, fifty-seven million, three hundred seventy-five thousand, four hundred thirty-nine".