144400325 has 24 divisors (see below), whose sum is σ = 192892416. Its totient is φ = 106920000.

The previous prime is 144400273. The next prime is 144400337. The reversal of 144400325 is 523004441.

It is not a de Polignac number, because 144400325 - 2¹⁰ = 144399301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 144400325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13775 + ... + 21875.

It is an arithmetic number, because the mean of its divisors is an integer number (8037184).

Almost surely, 2^144400325 is an apocalyptic number.

It is an amenable number.

144400325 is a deficient number, since it is larger than the sum of its proper divisors (48492091).

144400325 is a wasteful number, since it uses less digits than its factorization.

144400325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8165 (or 8160 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 144400325 is about 12016.6686315301. The cubic root of 144400325 is about 524.6335462374.

Adding to 144400325 its reverse (523004441), we get a palindrome (667404766).

The spelling of 144400325 in words is "one hundred forty-four million, four hundred thousand, three hundred twenty-five".