144639716 has 24 divisors (see below), whose sum is σ = 274036224. Its totient is φ = 66402720.

The previous prime is 144639683. The next prime is 144639749. The reversal of 144639716 is 617936441.

It is an interprime number because it is at equal distance from previous prime (144639683) and next prime (144639749).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2651 + ... + 17213.

It is an arithmetic number, because the mean of its divisors is an integer number (11418176).

Almost surely, 2^144639716 is an apocalyptic number.

It is an amenable number.

144639716 is a deficient number, since it is larger than the sum of its proper divisors (129396508).

144639716 is a wasteful number, since it uses less digits than its factorization.

144639716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14771 (or 14769 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 144639716 is about 12026.6252955682. The cubic root of 144639716 is about 524.9233036865.

The spelling of 144639716 in words is "one hundred forty-four million, six hundred thirty-nine thousand, seven hundred sixteen".