144757725 has 24 divisors (see below), whose sum is σ = 273524160. Its totient is φ = 66174720.

The previous prime is 144757687. The next prime is 144757729. The reversal of 144757725 is 527757441.

144757725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144757725 - 2⁶ = 144757661 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144757729) 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, 137340 + ... + 138389.

It is an arithmetic number, because the mean of its divisors is an integer number (11396840).

Almost surely, 2^144757725 is an apocalyptic number.

144757725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144757725 is a deficient number, since it is larger than the sum of its proper divisors (128766435).

144757725 is a wasteful number, since it uses less digits than its factorization.

144757725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275749 (or 275744 counting only the distinct ones).

The product of its digits is 274400, while the sum is 42.

The square root of 144757725 is about 12031.5304512768. The cubic root of 144757725 is about 525.0660234426.

The spelling of 144757725 in words is "one hundred forty-four million, seven hundred fifty-seven thousand, seven hundred twenty-five".