1144566825 has 24 divisors (see below), whose sum is σ = 1974629568. Its totient is φ = 583894080.

The previous prime is 1144566823. The next prime is 1144566827. The reversal of 1144566825 is 5286654411.

It is an interprime number because it is at equal distance from previous prime (1144566823) and next prime (1144566827).

It is not a de Polignac number, because 1144566825 - 2¹ = 1144566823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144566823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330034 + ... + 333483.

It is an arithmetic number, because the mean of its divisors is an integer number (82276232).

Almost surely, 2^1144566825 is an apocalyptic number.

1144566825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144566825 is a deficient number, since it is larger than the sum of its proper divisors (830062743).

1144566825 is a wasteful number, since it uses less digits than its factorization.

1144566825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663553 (or 663548 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 1144566825 is about 33831.4472791218. The cubic root of 1144566825 is about 1046.0370115239.

The spelling of 1144566825 in words is "one billion, one hundred forty-four million, five hundred sixty-six thousand, eight hundred twenty-five".