144987049 has 2 divisors, whose sum is σ = 144987050. Its totient is φ = 144987048.

The previous prime is 144986993. The next prime is 144987071. The reversal of 144987049 is 940789441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138227049 + 6760000 = 11757^2 + 2600^2 .

It is a cyclic number.

It is not a de Polignac number, because 144987049 - 2¹⁵ = 144954281 is a prime.

It is not a weakly prime, because it can be changed into another prime (144987449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72493524 + 72493525.

It is an arithmetic number, because the mean of its divisors is an integer number (72493525).

Almost surely, 2^144987049 is an apocalyptic number.

It is an amenable number.

144987049 is a deficient number, since it is larger than the sum of its proper divisors (1).

144987049 is an equidigital number, since it uses as much as digits as its factorization.

144987049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 144987049 is about 12041.0568057791. The cubic root of 144987049 is about 525.3431455844.

The spelling of 144987049 in words is "one hundred forty-four million, nine hundred eighty-seven thousand, forty-nine".