144029987 has 2 divisors, whose sum is σ = 144029988. Its totient is φ = 144029986.

The previous prime is 144029981. The next prime is 144030041. The reversal of 144029987 is 789920441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144029987 - 2⁸ = 144029731 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144029981) 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 as a sum of consecutive naturals, namely, 72014993 + 72014994.

It is an arithmetic number, because the mean of its divisors is an integer number (72014994).

Almost surely, 2^144029987 is an apocalyptic number.

144029987 is a deficient number, since it is larger than the sum of its proper divisors (1).

144029987 is an equidigital number, since it uses as much as digits as its factorization.

144029987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 144029987 is about 12001.2493932924. The cubic root of 144029987 is about 524.1846597296.

It can be divided in two parts, 14402 and 9987, that added together give a cube (24389 = 29³).

The spelling of 144029987 in words is "one hundred forty-four million, twenty-nine thousand, nine hundred eighty-seven".