1026445253 has 2 divisors, whose sum is σ = 1026445254. Its totient is φ = 1026445252.

The previous prime is 1026445241. The next prime is 1026445271. The reversal of 1026445253 is 3525446201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 980503969 + 45941284 = 31313^2 + 6778^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026445253 - 2⁸ = 1026444997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1026445283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513222626 + 513222627.

It is an arithmetic number, because the mean of its divisors is an integer number (513222627).

Almost surely, 2^1026445253 is an apocalyptic number.

It is an amenable number.

1026445253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026445253 is an equidigital number, since it uses as much as digits as its factorization.

1026445253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1026445253 is about 32038.1842962425. The cubic root of 1026445253 is about 1008.7385005141.

The spelling of 1026445253 in words is "one billion, twenty-six million, four hundred forty-five thousand, two hundred fifty-three".