144315725 has 24 divisors (see below), whose sum is σ = 185959080. Its totient is φ = 111006720.

The previous prime is 144315719. The next prime is 144315739. The reversal of 144315725 is 527513441.

It can be written as a sum of positive squares in 12 ways, for example, as 71537764 + 72777961 = 8458^2 + 8531^2 .

It is not a de Polignac number, because 144315725 - 2¹⁴ = 144299341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144315691 and 144315700.

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, 81449 + ... + 83201.

It is an arithmetic number, because the mean of its divisors is an integer number (7748295).

Almost surely, 2^144315725 is an apocalyptic number.

It is an amenable number.

144315725 is a deficient number, since it is larger than the sum of its proper divisors (41643355).

144315725 is a wasteful number, since it uses less digits than its factorization.

144315725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889 (or 1884 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 144315725 is about 12013.1480054147. The cubic root of 144315725 is about 524.5310703171.

The spelling of 144315725 in words is "one hundred forty-four million, three hundred fifteen thousand, seven hundred twenty-five".