144239458 has 32 divisors (see below), whose sum is σ = 255752640. Its totient is φ = 60264960.

The previous prime is 144239429. The next prime is 144239461. The reversal of 144239458 is 854932441.

It is a self number, because there is not a number n which added to its sum of digits gives 144239458.

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 15 ways as a sum of consecutive naturals, for example, 11598 + ... + 20566.

It is an arithmetic number, because the mean of its divisors is an integer number (7992270).

Almost surely, 2^144239458 is an apocalyptic number.

144239458 is a deficient number, since it is larger than the sum of its proper divisors (111513182).

144239458 is a wasteful number, since it uses less digits than its factorization.

144239458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9042.

The product of its digits is 138240, while the sum is 40.

The square root of 144239458 is about 12009.9732722434. The cubic root of 144239458 is about 524.4386538224.

The spelling of 144239458 in words is "one hundred forty-four million, two hundred thirty-nine thousand, four hundred fifty-eight".