144439197 has 16 divisors (see below), whose sum is σ = 231682560. Its totient is φ = 78192432.

The previous prime is 144439189. The next prime is 144439213. The reversal of 144439197 is 791934441.

It is not a de Polignac number, because 144439197 - 2³ = 144439189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144439117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180603 + ... + 181400.

It is an arithmetic number, because the mean of its divisors is an integer number (14480160).

Almost surely, 2^144439197 is an apocalyptic number.

It is an amenable number.

144439197 is a deficient number, since it is larger than the sum of its proper divisors (87243363).

144439197 is a wasteful number, since it uses less digits than its factorization.

144439197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362032.

The product of its digits is 108864, while the sum is 42.

The square root of 144439197 is about 12018.2859426792. The cubic root of 144439197 is about 524.6806184434.

The spelling of 144439197 in words is "one hundred forty-four million, four hundred thirty-nine thousand, one hundred ninety-seven".