144890389 has 8 divisors (see below), whose sum is σ = 166686848. Its totient is φ = 123368400.

The previous prime is 144890387. The next prime is 144890401. The reversal of 144890389 is 983098441.

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 144890389 - 2¹ = 144890387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144890387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67482 + ... + 69595.

It is an arithmetic number, because the mean of its divisors is an integer number (20835856).

Almost surely, 2^144890389 is an apocalyptic number.

It is an amenable number.

144890389 is a deficient number, since it is larger than the sum of its proper divisors (21796459).

144890389 is a wasteful number, since it uses less digits than its factorization.

144890389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137235.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 144890389 is about 12037.0423692866. The cubic root of 144890389 is about 525.2263743335.

The spelling of 144890389 in words is "one hundred forty-four million, eight hundred ninety thousand, three hundred eighty-nine".