1144417725 has 72 divisors (see below), whose sum is σ = 2242704672. Its totient is φ = 553238400.

The previous prime is 1144417697. The next prime is 1144417727. The reversal of 1144417725 is 5277144411.

It is not a de Polignac number, because 1144417725 - 2⁷ = 1144417597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1144417725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144417727) 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 71 ways as a sum of consecutive naturals, for example, 1675234 + ... + 1675916.

It is an arithmetic number, because the mean of its divisors is an integer number (31148676).

Almost surely, 2^1144417725 is an apocalyptic number.

1144417725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144417725 is a deficient number, since it is larger than the sum of its proper divisors (1098286947).

1144417725 is a wasteful number, since it uses less digits than its factorization.

1144417725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387 (or 1379 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 1144417725 is about 33829.2436362388. The cubic root of 1144417725 is about 1045.9915879663.

The spelling of 1144417725 in words is "one billion, one hundred forty-four million, four hundred seventeen thousand, seven hundred twenty-five".