144652223 has 4 divisors (see below), whose sum is σ = 148180368. Its totient is φ = 141124080.

The previous prime is 144652213. The next prime is 144652241. The reversal of 144652223 is 322256441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322256441 = 13 ⋅24788957.

It is a cyclic number.

It is not a de Polignac number, because 144652223 - 2¹⁴ = 144635839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144652213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1764011 + ... + 1764092.

It is an arithmetic number, because the mean of its divisors is an integer number (37045092).

Almost surely, 2^144652223 is an apocalyptic number.

144652223 is a deficient number, since it is larger than the sum of its proper divisors (3528145).

144652223 is an equidigital number, since it uses as much as digits as its factorization.

144652223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528144.

The product of its digits is 11520, while the sum is 29.

The square root of 144652223 is about 12027.1452556290. The cubic root of 144652223 is about 524.9384332943.

The spelling of 144652223 in words is "one hundred forty-four million, six hundred fifty-two thousand, two hundred twenty-three".