144431854 has 16 divisors (see below), whose sum is σ = 249791328. Its totient is φ = 61350912.

The previous prime is 144431843. The next prime is 144431873. The reversal of 144431854 is 458134441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44067 + ... + 47230.

It is an arithmetic number, because the mean of its divisors is an integer number (15611958).

Almost surely, 2^144431854 is an apocalyptic number.

144431854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

144431854 is a deficient number, since it is larger than the sum of its proper divisors (105359474).

144431854 is a wasteful number, since it uses less digits than its factorization.

144431854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91419.

The product of its digits is 30720, while the sum is 34.

The square root of 144431854 is about 12017.9804459818. The cubic root of 144431854 is about 524.6717270548.

The spelling of 144431854 in words is "one hundred forty-four million, four hundred thirty-one thousand, eight hundred fifty-four".