144938197 has 2 divisors, whose sum is σ = 144938198. Its totient is φ = 144938196.

The previous prime is 144938179. The next prime is 144938263. The reversal of 144938197 is 791839441.

Together with previous prime (144938179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144937521 + 676 = 12039^2 + 26^2 .

It is an emirp because it is prime and its reverse (791839441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144938197 - 2¹¹ = 144936149 is a prime.

It is a super-2 number, since 2×144938197² = 42014161899221618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144938147) by changing a digit.

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 as a sum of consecutive naturals, namely, 72469098 + 72469099.

It is an arithmetic number, because the mean of its divisors is an integer number (72469099).

Almost surely, 2^144938197 is an apocalyptic number.

It is an amenable number.

144938197 is a deficient number, since it is larger than the sum of its proper divisors (1).

144938197 is an equidigital number, since it uses as much as digits as its factorization.

144938197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 46.

The square root of 144938197 is about 12039.0280753888. The cubic root of 144938197 is about 525.2841358395.

The spelling of 144938197 in words is "one hundred forty-four million, nine hundred thirty-eight thousand, one hundred ninety-seven".