1026272257 has 2 divisors, whose sum is σ = 1026272258. Its totient is φ = 1026272256.

The previous prime is 1026272249. The next prime is 1026272263. The reversal of 1026272257 is 7522726201.

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., 1025984961 + 287296 = 32031^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026272257 - 2³ = 1026272249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1026272227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513136128 + 513136129.

It is an arithmetic number, because the mean of its divisors is an integer number (513136129).

Almost surely, 2^1026272257 is an apocalyptic number.

It is an amenable number.

1026272257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026272257 is an equidigital number, since it uses as much as digits as its factorization.

1026272257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 1026272257 is about 32035.4843415860. The cubic root of 1026272257 is about 1008.6818267558.

Adding to 1026272257 its reverse (7522726201), we get a palindrome (8548998458).

The spelling of 1026272257 in words is "one billion, twenty-six million, two hundred seventy-two thousand, two hundred fifty-seven".