144890451 has 12 divisors (see below), whose sum is σ = 217037912. Its totient is φ = 96593472.

The previous prime is 144890443. The next prime is 144890453. The reversal of 144890451 is 154098441.

It is not a de Polignac number, because 144890451 - 2³ = 144890443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144890453) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 297886 + ... + 298371.

Almost surely, 2^144890451 is an apocalyptic number.

144890451 is a deficient number, since it is larger than the sum of its proper divisors (72147461).

144890451 is an frugal number, since it uses more digits than its factorization.

144890451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596272 (or 596260 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 144890451 is about 12037.0449446698. The cubic root of 144890451 is about 525.2264492499.

The spelling of 144890451 in words is "one hundred forty-four million, eight hundred ninety thousand, four hundred fifty-one".