144890 has 8 divisors (see below), whose sum is σ = 260820. Its totient is φ = 57952.

The previous prime is 144889. The next prime is 144899. The reversal of 144890 is 98441.

It can be written as a sum of positive squares in 2 ways, for example, as 134689 + 10201 = 367^2 + 101^2 .

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

It is a super-2 number, since 2×144890² = 41986224200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144899) 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 3 ways as a sum of consecutive naturals, for example, 7235 + ... + 7254.

2¹⁴⁴⁸⁹⁰ is an apocalyptic number.

144890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144890 is a deficient number, since it is larger than the sum of its proper divisors (115930).

144890 is a wasteful number, since it uses less digits than its factorization.

144890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14496.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 144890 is about 380.6441908134. The cubic root of 144890 is about 52.5225904293.

The spelling of 144890 in words is "one hundred forty-four thousand, eight hundred ninety".