144724198 has 4 divisors (see below), whose sum is σ = 217086300. Its totient is φ = 72362098.

The previous prime is 144724187. The next prime is 144724201. The reversal of 144724198 is 891427441.

144724198 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 144724198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36181048 + ... + 36181051.

It is an arithmetic number, because the mean of its divisors is an integer number (54271575).

Almost surely, 2^144724198 is an apocalyptic number.

144724198 is a deficient number, since it is larger than the sum of its proper divisors (72362102).

144724198 is an equidigital number, since it uses as much as digits as its factorization.

144724198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72362101.

The product of its digits is 64512, while the sum is 40.

The square root of 144724198 is about 12030.1370732008. The cubic root of 144724198 is about 525.0254838726.

The spelling of 144724198 in words is "one hundred forty-four million, seven hundred twenty-four thousand, one hundred ninety-eight".