144681142 has 16 divisors (see below), whose sum is σ = 221159952. Its totient is φ = 70967520.

The previous prime is 144681133. The next prime is 144681161. The reversal of 144681142 is 241186441.

It is a congruent number.

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, 52708 + ... + 55384.

It is an arithmetic number, because the mean of its divisors is an integer number (13822497).

Almost surely, 2^144681142 is an apocalyptic number.

144681142 is a deficient number, since it is larger than the sum of its proper divisors (76478810).

144681142 is a wasteful number, since it uses less digits than its factorization.

144681142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3183.

The product of its digits is 6144, while the sum is 31.

The square root of 144681142 is about 12028.3474342904. The cubic root of 144681142 is about 524.9734130149.

The spelling of 144681142 in words is "one hundred forty-four million, six hundred eighty-one thousand, one hundred forty-two".