1045280399 has 2 divisors, whose sum is σ = 1045280400. Its totient is φ = 1045280398.

The previous prime is 1045280387. The next prime is 1045280407. The reversal of 1045280399 is 9930825401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1045280399 - 2¹² = 1045276303 is a prime.

It is a super-2 number, since 2×1045280399² = 2185222225067198402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045283399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522640199 + 522640200.

It is an arithmetic number, because the mean of its divisors is an integer number (522640200).

Almost surely, 2^1045280399 is an apocalyptic number.

1045280399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045280399 is an equidigital number, since it uses as much as digits as its factorization.

1045280399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1045280399 is about 32330.7964485875. The cubic root of 1045280399 is about 1014.8712169674.

The spelling of 1045280399 in words is "one billion, forty-five million, two hundred eighty thousand, three hundred ninety-nine".