1026245251 has 2 divisors, whose sum is σ = 1026245252. Its totient is φ = 1026245250.

The previous prime is 1026245219. The next prime is 1026245279. The reversal of 1026245251 is 1525426201.

It is an a-pointer prime, because the next prime (1026245279) can be obtained adding 1026245251 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1026245251 - 2⁵ = 1026245219 is a prime.

It is not a weakly prime, because it can be changed into another prime (1026245281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513122625 + 513122626.

It is an arithmetic number, because the mean of its divisors is an integer number (513122626).

Almost surely, 2^1026245251 is an apocalyptic number.

1026245251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026245251 is an equidigital number, since it uses as much as digits as its factorization.

1026245251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1026245251 is about 32035.0628374598. The cubic root of 1026245251 is about 1008.6729789736.

The spelling of 1026245251 in words is "one billion, twenty-six million, two hundred forty-five thousand, two hundred fifty-one".