1042257457 has 2 divisors, whose sum is σ = 1042257458. Its totient is φ = 1042257456.

The previous prime is 1042257451. The next prime is 1042257473. The reversal of 1042257457 is 7547522401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 864595216 + 177662241 = 29404^2 + 13329^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042257457 - 2³ = 1042257449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042257451) 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, 521128728 + 521128729.

It is an arithmetic number, because the mean of its divisors is an integer number (521128729).

Almost surely, 2^1042257457 is an apocalyptic number.

It is an amenable number.

1042257457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042257457 is an equidigital number, since it uses as much as digits as its factorization.

1042257457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 1042257457 is about 32284.0124055236. The cubic root of 1042257457 is about 1013.8919393707.

Adding to 1042257457 its reverse (7547522401), we get a palindrome (8589779858).

The spelling of 1042257457 in words is "one billion, forty-two million, two hundred fifty-seven thousand, four hundred fifty-seven".