1057170487 has 2 divisors, whose sum is σ = 1057170488. Its totient is φ = 1057170486.

The previous prime is 1057170407. The next prime is 1057170493. The reversal of 1057170487 is 7840717501.

1057170487 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1057170487 is a prime.

It is a super-2 number, since 2×1057170487² = 2235218877167634338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1057170407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528585243 + 528585244.

It is an arithmetic number, because the mean of its divisors is an integer number (528585244).

Almost surely, 2^1057170487 is an apocalyptic number.

1057170487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057170487 is an equidigital number, since it uses as much as digits as its factorization.

1057170487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54880, while the sum is 40.

The square root of 1057170487 is about 32514.1582545204. The cubic root of 1057170487 is about 1018.7047788426.

Adding to 1057170487 its reverse (7840717501), we get a palindrome (8897887988).

The spelling of 1057170487 in words is "one billion, fifty-seven million, one hundred seventy thousand, four hundred eighty-seven".