1042685269 has 2 divisors, whose sum is σ = 1042685270. Its totient is φ = 1042685268.

The previous prime is 1042685257. The next prime is 1042685291. The reversal of 1042685269 is 9625862401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 668843044 + 373842225 = 25862^2 + 19335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042685269 is a prime.

It is a super-2 number, since 2×1042685269² = 2174385140379204722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042685219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521342634 + 521342635.

It is an arithmetic number, because the mean of its divisors is an integer number (521342635).

Almost surely, 2^1042685269 is an apocalyptic number.

It is an amenable number.

1042685269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042685269 is an equidigital number, since it uses as much as digits as its factorization.

1042685269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 1042685269 is about 32290.6374820938. The cubic root of 1042685269 is about 1014.0306433610.

The spelling of 1042685269 in words is "one billion, forty-two million, six hundred eighty-five thousand, two hundred sixty-nine".