1257468571 has 2 divisors, whose sum is σ = 1257468572. Its totient is φ = 1257468570.

The previous prime is 1257468559. The next prime is 1257468617. The reversal of 1257468571 is 1758647521.

It is an a-pointer prime, because the next prime (1257468617) can be obtained adding 1257468571 to its sum of digits (46).

It is a weak prime.

It is an emirp because it is prime and its reverse (1758647521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1257468571 - 2⁹ = 1257468059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1257468551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628734285 + 628734286.

It is an arithmetic number, because the mean of its divisors is an integer number (628734286).

Almost surely, 2^1257468571 is an apocalyptic number.

1257468571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1257468571 is an equidigital number, since it uses as much as digits as its factorization.

1257468571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 46.

The square root of 1257468571 is about 35460.8033044938. The cubic root of 1257468571 is about 1079.3584927703.

The spelling of 1257468571 in words is "one billion, two hundred fifty-seven million, four hundred sixty-eight thousand, five hundred seventy-one".