144468458 has 4 divisors (see below), whose sum is σ = 216702690. Its totient is φ = 72234228.

The previous prime is 144468391. The next prime is 144468473. The reversal of 144468458 is 854864441.

144468458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 74528689 + 69939769 = 8633^2 + 8363^2 .

It is a super-2 number, since 2×144468458² = 41742270713795528, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36117113 + ... + 36117116.

Almost surely, 2^144468458 is an apocalyptic number.

144468458 is a deficient number, since it is larger than the sum of its proper divisors (72234232).

144468458 is an equidigital number, since it uses as much as digits as its factorization.

144468458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72234231.

The product of its digits is 491520, while the sum is 44.

The square root of 144468458 is about 12019.5032343271. The cubic root of 144468458 is about 524.7160465988.

The spelling of 144468458 in words is "one hundred forty-four million, four hundred sixty-eight thousand, four hundred fifty-eight".