1457028869 has 2 divisors, whose sum is σ = 1457028870. Its totient is φ = 1457028868.

The previous prime is 1457028829. The next prime is 1457028887. The reversal of 1457028869 is 9688207541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1448791969 + 8236900 = 38063^2 + 2870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1457028869 is a prime.

It is a super-2 number, since 2×1457028869² = 4245866250198838322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1457028829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728514434 + 728514435.

It is an arithmetic number, because the mean of its divisors is an integer number (728514435).

Almost surely, 2^1457028869 is an apocalyptic number.

It is an amenable number.

1457028869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457028869 is an equidigital number, since it uses as much as digits as its factorization.

1457028869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 1457028869 is about 38171.0475229591. The cubic root of 1457028869 is about 1133.6771300605.

The spelling of 1457028869 in words is "one billion, four hundred fifty-seven million, twenty-eight thousand, eight hundred sixty-nine".