144321434 has 16 divisors (see below), whose sum is σ = 221054400. Its totient is φ = 70646784.

The previous prime is 144321427. The next prime is 144321451. The reversal of 144321434 is 434123441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27947 + ... + 32705.

It is an arithmetic number, because the mean of its divisors is an integer number (13815900).

Almost surely, 2^144321434 is an apocalyptic number.

144321434 is a deficient number, since it is larger than the sum of its proper divisors (76732966).

144321434 is a wasteful number, since it uses less digits than its factorization.

144321434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5077.

The product of its digits is 4608, while the sum is 26.

The square root of 144321434 is about 12013.3856177183. The cubic root of 144321434 is about 524.5379868846.

Adding to 144321434 its reverse (434123441), we get a palindrome (578444875).

The spelling of 144321434 in words is "one hundred forty-four million, three hundred twenty-one thousand, four hundred thirty-four".