1144664325 has 48 divisors (see below), whose sum is σ = 2403199360. Its totient is φ = 523272960.

The previous prime is 1144664317. The next prime is 1144664327. The reversal of 1144664325 is 5234664411.

1144664325 is a `hidden beast` number, since 1 + 1 + 4 + 4 + 6 + 643 + 2 + 5 = 666.

It is not a de Polignac number, because 1144664325 - 2³ = 1144664317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1144664325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144664327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116404 + ... + 125853.

Almost surely, 2^1144664325 is an apocalyptic number.

1144664325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144664325 is an abundant number, since it is smaller than the sum of its proper divisors (1258535035).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144664325 is a wasteful number, since it uses less digits than its factorization.

1144664325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242283 (or 242272 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1144664325 is about 33832.8882154628. Note that the first 3 decimals coincide. The cubic root of 1144664325 is about 1046.0667129243.

The spelling of 1144664325 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, three hundred twenty-five".