144325665 has 64 divisors (see below), whose sum is σ = 296421120. Its totient is φ = 65848320.

The previous prime is 144325661. The next prime is 144325669. The reversal of 144325665 is 566523441.

It is an interprime number because it is at equal distance from previous prime (144325661) and next prime (144325669).

It is not a de Polignac number, because 144325665 - 2² = 144325661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144325661) 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 63 ways as a sum of consecutive naturals, for example, 22387 + ... + 28103.

It is an arithmetic number, because the mean of its divisors is an integer number (4631580).

Almost surely, 2^144325665 is an apocalyptic number.

144325665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144325665 is an abundant number, since it is smaller than the sum of its proper divisors (152095455).

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

144325665 is a wasteful number, since it uses less digits than its factorization.

144325665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5759 (or 5753 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 144325665 is about 12013.5617116657. The cubic root of 144325665 is about 524.5431127080.

The spelling of 144325665 in words is "one hundred forty-four million, three hundred twenty-five thousand, six hundred sixty-five".