1045405863 has 12 divisors (see below), whose sum is σ = 1518375768. Its totient is φ = 693085680.

The previous prime is 1045405843. The next prime is 1045405873. The reversal of 1045405863 is 3685045401.

It is a happy number.

1045405863 is a `hidden beast` number, since 1 + 0 + 4 + 540 + 58 + 63 = 666.

It is not a de Polignac number, because 1045405863 - 2⁶ = 1045405799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045405843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319245 + ... + 322502.

It is an arithmetic number, because the mean of its divisors is an integer number (126531314).

Almost surely, 2^1045405863 is an apocalyptic number.

1045405863 is a deficient number, since it is larger than the sum of its proper divisors (472969905).

1045405863 is a wasteful number, since it uses less digits than its factorization.

1045405863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641934 (or 641931 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1045405863 is about 32332.7367075538. The cubic root of 1045405863 is about 1014.9118200146.

The spelling of 1045405863 in words is "one billion, forty-five million, four hundred five thousand, eight hundred sixty-three".