144323197 has 4 divisors (see below), whose sum is σ = 148978816. Its totient is φ = 139667580.

The previous prime is 144323177. The next prime is 144323203. The reversal of 144323197 is 791323441.

144323197 is digitally balanced in base 2, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144323197 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 (144323177) 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, 2327763 + ... + 2327824.

It is an arithmetic number, because the mean of its divisors is an integer number (37244704).

Almost surely, 2^144323197 is an apocalyptic number.

It is an amenable number.

144323197 is a deficient number, since it is larger than the sum of its proper divisors (4655619).

144323197 is an equidigital number, since it uses as much as digits as its factorization.

144323197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655618.

The product of its digits is 18144, while the sum is 34.

The square root of 144323197 is about 12013.4589939784. The cubic root of 144323197 is about 524.5401227575.

The spelling of 144323197 in words is "one hundred forty-four million, three hundred twenty-three thousand, one hundred ninety-seven".