1026298261 has 2 divisors, whose sum is σ = 1026298262. Its totient is φ = 1026298260.

The previous prime is 1026298253. The next prime is 1026298271. The reversal of 1026298261 is 1628926201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 960380100 + 65918161 = 30990^2 + 8119^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026298261 - 2³ = 1026298253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1026298261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1026298271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513149130 + 513149131.

It is an arithmetic number, because the mean of its divisors is an integer number (513149131).

Almost surely, 2^1026298261 is an apocalyptic number.

It is an amenable number.

1026298261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026298261 is an equidigital number, since it uses as much as digits as its factorization.

1026298261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1026298261 is about 32035.8902014600. The cubic root of 1026298261 is about 1008.6903461133.

The spelling of 1026298261 in words is "one billion, twenty-six million, two hundred ninety-eight thousand, two hundred sixty-one".