1042207769 has 2 divisors, whose sum is σ = 1042207770. Its totient is φ = 1042207768.

The previous prime is 1042207723. The next prime is 1042207781. The reversal of 1042207769 is 9677022401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 665382025 + 376825744 = 25795^2 + 19412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042207769 is a prime.

It is a super-2 number, since 2×1042207769² = 2172394067527914722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1042207799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521103884 + 521103885.

It is an arithmetic number, because the mean of its divisors is an integer number (521103885).

Almost surely, 2^1042207769 is an apocalyptic number.

It is an amenable number.

1042207769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042207769 is an equidigital number, since it uses as much as digits as its factorization.

1042207769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1042207769 is about 32283.2428513618. The cubic root of 1042207769 is about 1013.8758272086.

The spelling of 1042207769 in words is "one billion, forty-two million, two hundred seven thousand, seven hundred sixty-nine".