1026457259 has 2 divisors, whose sum is σ = 1026457260. Its totient is φ = 1026457258.

The previous prime is 1026457247. The next prime is 1026457277. The reversal of 1026457259 is 9527546201.

It is a weak prime.

It is an emirp because it is prime and its reverse (9527546201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1026457259 - 2²⁴ = 1009680043 is a prime.

It is a super-2 number, since 2×1026457259² = 2107229009107586162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1026457459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513228629 + 513228630.

It is an arithmetic number, because the mean of its divisors is an integer number (513228630).

Almost surely, 2^1026457259 is an apocalyptic number.

1026457259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026457259 is an equidigital number, since it uses as much as digits as its factorization.

1026457259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 1026457259 is about 32038.3716658634. The cubic root of 1026457259 is about 1008.7424334620.

The spelling of 1026457259 in words is "one billion, twenty-six million, four hundred fifty-seven thousand, two hundred fifty-nine".