1025042269 has 2 divisors, whose sum is σ = 1025042270. Its totient is φ = 1025042268.

The previous prime is 1025042201. The next prime is 1025042279. The reversal of 1025042269 is 9622405201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 838392025 + 186650244 = 28955^2 + 13662^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025042269 - 2⁷ = 1025042141 is a prime.

It is a super-2 number, since 2×1025042269² = 2101423306473336722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1025042269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025042279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512521134 + 512521135.

It is an arithmetic number, because the mean of its divisors is an integer number (512521135).

Almost surely, 2^1025042269 is an apocalyptic number.

It is an amenable number.

1025042269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025042269 is an equidigital number, since it uses as much as digits as its factorization.

1025042269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1025042269 is about 32016.2813112329. The cubic root of 1025042269 is about 1008.2786970434.

The spelling of 1025042269 in words is "one billion, twenty-five million, forty-two thousand, two hundred sixty-nine".