144892489 has 8 divisors (see below), whose sum is σ = 167299328. Its totient is φ = 122912640.

The previous prime is 144892487. The next prime is 144892529. The reversal of 144892489 is 984298441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144892489 - 2¹ = 144892487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144892487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106017 + ... + 107374.

It is an arithmetic number, because the mean of its divisors is an integer number (20912416).

Almost surely, 2^144892489 is an apocalyptic number.

It is an amenable number.

144892489 is a deficient number, since it is larger than the sum of its proper divisors (22406839).

144892489 is an equidigital number, since it uses as much as digits as its factorization.

144892489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213495.

The product of its digits is 663552, while the sum is 49.

The square root of 144892489 is about 12037.1295997011. The cubic root of 144892489 is about 525.2289118150.

The spelling of 144892489 in words is "one hundred forty-four million, eight hundred ninety-two thousand, four hundred eighty-nine".