144252245 has 4 divisors (see below), whose sum is σ = 173102700. Its totient is φ = 115401792.

The previous prime is 144252223. The next prime is 144252281. The reversal of 144252245 is 542252441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542252441 = 1153 ⋅470297.

It can be written as a sum of positive squares in 2 ways, for example, as 64096036 + 80156209 = 8006^2 + 8953^2 .

It is a cyclic number.

It is not a de Polignac number, because 144252245 - 2⁶ = 144252181 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14425220 + ... + 14425229.

It is an arithmetic number, because the mean of its divisors is an integer number (43275675).

Almost surely, 2^144252245 is an apocalyptic number.

It is an amenable number.

144252245 is a deficient number, since it is larger than the sum of its proper divisors (28850455).

144252245 is an equidigital number, since it uses as much as digits as its factorization.

144252245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28850454.

The product of its digits is 12800, while the sum is 29.

The square root of 144252245 is about 12010.5056096736. The cubic root of 144252245 is about 524.4541507352.

The spelling of 144252245 in words is "one hundred forty-four million, two hundred fifty-two thousand, two hundred forty-five".