144271987 has 2 divisors, whose sum is σ = 144271988. Its totient is φ = 144271986.

The previous prime is 144271973. The next prime is 144271993. The reversal of 144271987 is 789172441.

144271987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144271987 is a prime.

It is not a weakly prime, because it can be changed into another prime (144271957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72135993 + 72135994.

It is an arithmetic number, because the mean of its divisors is an integer number (72135994).

Almost surely, 2^144271987 is an apocalyptic number.

144271987 is a deficient number, since it is larger than the sum of its proper divisors (1).

144271987 is an equidigital number, since it uses as much as digits as its factorization.

144271987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 43.

The square root of 144271987 is about 12011.3274453742. The cubic root of 144271987 is about 524.4780748032.

The spelling of 144271987 in words is "one hundred forty-four million, two hundred seventy-one thousand, nine hundred eighty-seven".