144662540 has 24 divisors (see below), whose sum is σ = 331409232. Its totient is φ = 52604480.

The previous prime is 144662533. The next prime is 144662579. The reversal of 144662540 is 45266441.

144662540 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 = 144662497 and 144662506.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 328559 + ... + 328998.

It is an arithmetic number, because the mean of its divisors is an integer number (13808718).

Almost surely, 2^144662540 is an apocalyptic number.

144662540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144662540 is an abundant number, since it is smaller than the sum of its proper divisors (186746692).

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

144662540 is a wasteful number, since it uses less digits than its factorization.

144662540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657577 (or 657575 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 144662540 is about 12027.5741527542. The cubic root of 144662540 is about 524.9509130220.

The spelling of 144662540 in words is "one hundred forty-four million, six hundred sixty-two thousand, five hundred forty".