1145306444 has 6 divisors (see below), whose sum is σ = 2004286284. Its totient is φ = 572653220.

The previous prime is 1145306443. The next prime is 1145306471. The reversal of 1145306444 is 4446035411.

It is a self number, because there is not a number n which added to its sum of digits gives 1145306444.

It is not an unprimeable number, because it can be changed into a prime (1145306441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143163302 + ... + 143163309.

It is an arithmetic number, because the mean of its divisors is an integer number (334047714).

Almost surely, 2^1145306444 is an apocalyptic number.

It is an amenable number.

1145306444 is a deficient number, since it is larger than the sum of its proper divisors (858979840).

1145306444 is a wasteful number, since it uses less digits than its factorization.

1145306444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286326615 (or 286326613 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 1145306444 is about 33842.3764531984. The cubic root of 1145306444 is about 1046.2622793554.

The spelling of 1145306444 in words is "one billion, one hundred forty-five million, three hundred six thousand, four hundred forty-four".