144444475 has 12 divisors (see below), whose sum is σ = 204698704. Its totient is φ = 99047520.

The previous prime is 144444473. The next prime is 144444497. The reversal of 144444475 is 574444441.

It is not a de Polignac number, because 144444475 - 2¹ = 144444473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144444473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412524 + ... + 412873.

Almost surely, 2^144444475 is an apocalyptic number.

144444475 is a deficient number, since it is larger than the sum of its proper divisors (60254229).

144444475 is an equidigital number, since it uses as much as digits as its factorization.

144444475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825414 (or 825409 counting only the distinct ones).

The product of its digits is 143360, while the sum is 37.

The square root of 144444475 is about 12018.5055227345. The cubic root of 144444475 is about 524.6870092076.

The spelling of 144444475 in words is "one hundred forty-four million, four hundred forty-four thousand, four hundred seventy-five".