144563538 has 16 divisors (see below), whose sum is σ = 330431040. Its totient is φ = 41303856.

The previous prime is 144563519. The next prime is 144563561. The reversal of 144563538 is 835365441.

It is a junction number, because it is equal to n+sod(n) for n = 144563496 and 144563505.

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, 1720953 + ... + 1721036.

It is an arithmetic number, because the mean of its divisors is an integer number (20651940).

Almost surely, 2^144563538 is an apocalyptic number.

144563538 is an abundant number, since it is smaller than the sum of its proper divisors (185867502).

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

144563538 is a wasteful number, since it uses less digits than its factorization.

144563538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442001.

The product of its digits is 172800, while the sum is 39.

The square root of 144563538 is about 12023.4578221076. The cubic root of 144563538 is about 524.8311329911.

The spelling of 144563538 in words is "one hundred forty-four million, five hundred sixty-three thousand, five hundred thirty-eight".