144891633 has 16 divisors (see below), whose sum is σ = 196263936. Its totient is φ = 95069520.

The previous prime is 144891631. The next prime is 144891661. The reversal of 144891633 is 336198441.

It is not a de Polignac number, because 144891633 - 2¹ = 144891631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144891591 and 144891600.

It is not an unprimeable number, because it can be changed into a prime (144891631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48460 + ... + 51362.

It is an arithmetic number, because the mean of its divisors is an integer number (12266496).

Almost surely, 2^144891633 is an apocalyptic number.

It is an amenable number.

144891633 is a deficient number, since it is larger than the sum of its proper divisors (51372303).

144891633 is a wasteful number, since it uses less digits than its factorization.

144891633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3164.

The product of its digits is 62208, while the sum is 39.

The square root of 144891633 is about 12037.0940429989. The cubic root of 144891633 is about 525.2278774922.

The spelling of 144891633 in words is "one hundred forty-four million, eight hundred ninety-one thousand, six hundred thirty-three".