1043042569 has 2 divisors, whose sum is σ = 1043042570. Its totient is φ = 1043042568.

The previous prime is 1043042557. The next prime is 1043042573. The reversal of 1043042569 is 9652403401.

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., 985206544 + 57836025 = 31388^2 + 7605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043042569 - 2⁵ = 1043042537 is a prime.

It is a super-2 number, since 2×1043042569² = 2175875601492239522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1043042579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521521284 + 521521285.

It is an arithmetic number, because the mean of its divisors is an integer number (521521285).

Almost surely, 2^1043042569 is an apocalyptic number.

It is an amenable number.

1043042569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043042569 is an equidigital number, since it uses as much as digits as its factorization.

1043042569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1043042569 is about 32296.1695716381. The cubic root of 1043042569 is about 1014.1464570785.

The spelling of 1043042569 in words is "one billion, forty-three million, forty-two thousand, five hundred sixty-nine".