144960660 has 72 divisors (see below), whose sum is σ = 473545800. Its totient is φ = 35682048.

The previous prime is 144960631. The next prime is 144960661. The reversal of 144960660 is 66069441.

144960660 is a `hidden beast` number, since 1 + 4 + 49 + 606 + 6 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4822416 + 140138244 = 2196^2 + 11838^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144960661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28635 + ... + 33314.

It is an arithmetic number, because the mean of its divisors is an integer number (6577025).

Almost surely, 2^144960660 is an apocalyptic number.

144960660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144960660 is an abundant number, since it is smaller than the sum of its proper divisors (328585140).

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

144960660 is a wasteful number, since it uses less digits than its factorization.

144960660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61977 (or 61972 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 144960660 is about 12039.9609633919. The cubic root of 144960660 is about 525.3112711939.

The spelling of 144960660 in words is "one hundred forty-four million, nine hundred sixty thousand, six hundred sixty".