144555642 has 48 divisors (see below), whose sum is σ = 390491712. Its totient is φ = 37546560.

The previous prime is 144555623. The next prime is 144555679. The reversal of 144555642 is 246555441.

144555642 is a `hidden beast` number, since 1 + 4 + 4 + 5 + 5 + 5 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 144555597 and 144555606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50763 + ... + 53534.

It is an arithmetic number, because the mean of its divisors is an integer number (8135244).

Almost surely, 2^144555642 is an apocalyptic number.

144555642 is an abundant number, since it is smaller than the sum of its proper divisors (245936070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144555642 is a wasteful number, since it uses less digits than its factorization.

144555642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104323 (or 104320 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 144555642 is about 12023.1294595043. The cubic root of 144555642 is about 524.8215774648.

The spelling of 144555642 in words is "one hundred forty-four million, five hundred fifty-five thousand, six hundred forty-two".