144672233 has 4 divisors (see below), whose sum is σ = 144927060. Its totient is φ = 144417408.

The previous prime is 144672217. The next prime is 144672287. The reversal of 144672233 is 332276441.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33327529 + 111344704 = 5773^2 + 10552^2 .

It is a cyclic number.

It is not a de Polignac number, because 144672233 - 2⁴ = 144672217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144672233.

It is not an unprimeable number, because it can be changed into a prime (144672293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126560 + ... + 127697.

It is an arithmetic number, because the mean of its divisors is an integer number (36231765).

Almost surely, 2^144672233 is an apocalyptic number.

It is an amenable number.

144672233 is a deficient number, since it is larger than the sum of its proper divisors (254827).

144672233 is an equidigital number, since it uses as much as digits as its factorization.

144672233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254826.

The product of its digits is 24192, while the sum is 32.

The square root of 144672233 is about 12027.9770950896. The cubic root of 144672233 is about 524.9626374016.

The spelling of 144672233 in words is "one hundred forty-four million, six hundred seventy-two thousand, two hundred thirty-three".