144925540 has 24 divisors (see below), whose sum is σ = 320362560. Its totient is φ = 54919008.

The previous prime is 144925519. The next prime is 144925549. The reversal of 144925540 is 45529441.

144925540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 144925496 and 144925505.

It is not an unprimeable number, because it can be changed into a prime (144925549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190312 + ... + 191071.

It is an arithmetic number, because the mean of its divisors is an integer number (13348440).

Almost surely, 2^144925540 is an apocalyptic number.

144925540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144925540 is an abundant number, since it is smaller than the sum of its proper divisors (175437020).

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

144925540 is a wasteful number, since it uses less digits than its factorization.

144925540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381411 (or 381409 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 144925540 is about 12038.5023985544. The cubic root of 144925540 is about 525.2688449202.

The spelling of 144925540 in words is "one hundred forty-four million, nine hundred twenty-five thousand, five hundred forty".