1029568457 has 2 divisors, whose sum is σ = 1029568458. Its totient is φ = 1029568456.

The previous prime is 1029568453. The next prime is 1029568459. The reversal of 1029568457 is 7548659201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1017865216 + 11703241 = 31904^2 + 3421^2 .

It is a cyclic number.

It is not a de Polignac number, because 1029568457 - 2² = 1029568453 is a prime.

It is a super-2 number, since 2×1029568457² = 2120022415298721698, which contains 22 as substring.

Together with 1029568459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1029568453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514784228 + 514784229.

It is an arithmetic number, because the mean of its divisors is an integer number (514784229).

Almost surely, 2^1029568457 is an apocalyptic number.

It is an amenable number.

1029568457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1029568457 is an equidigital number, since it uses as much as digits as its factorization.

1029568457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 1029568457 is about 32086.8891761105. The cubic root of 1029568457 is about 1009.7605735774.

The spelling of 1029568457 in words is "one billion, twenty-nine million, five hundred sixty-eight thousand, four hundred fifty-seven".