144893866 has 16 divisors (see below), whose sum is σ = 234514728. Its totient is φ = 66744000.

The previous prime is 144893857. The next prime is 144893899. The reversal of 144893866 is 668398441.

144893866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 128255625 + 16638241 = 11325^2 + 4079^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8916 + ... + 19216.

Almost surely, 2^144893866 is an apocalyptic number.

144893866 is a deficient number, since it is larger than the sum of its proper divisors (89620862).

144893866 is a wasteful number, since it uses less digits than its factorization.

144893866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10857.

The product of its digits is 995328, while the sum is 49.

The square root of 144893866 is about 12037.1867975869. The cubic root of 144893866 is about 525.2305756646.

The spelling of 144893866 in words is "one hundred forty-four million, eight hundred ninety-three thousand, eight hundred sixty-six".