144219976 has 16 divisors (see below), whose sum is σ = 286319340. Its totient is φ = 67868160.

The previous prime is 144219953. The next prime is 144219983. The reversal of 144219976 is 679912441.

It can be written as a sum of positive squares in 2 ways, for example, as 110880900 + 33339076 = 10530^2 + 5774^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530085 + ... + 530356.

Almost surely, 2^144219976 is an apocalyptic number.

It is an amenable number.

144219976 is a deficient number, since it is larger than the sum of its proper divisors (142099364).

144219976 is a wasteful number, since it uses less digits than its factorization.

144219976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060464 (or 1060460 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 144219976 is about 12009.1621689442. The cubic root of 144219976 is about 524.4150412963.

The spelling of 144219976 in words is "one hundred forty-four million, two hundred nineteen thousand, nine hundred seventy-six".