144198979 has 2 divisors, whose sum is σ = 144198980. Its totient is φ = 144198978.

The previous prime is 144198931. The next prime is 144198997. The reversal of 144198979 is 979891441.

Together with next prime (144198997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144198979 - 2¹⁷ = 144067907 is a prime.

It is not a weakly prime, because it can be changed into another prime (144198079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72099489 + 72099490.

It is an arithmetic number, because the mean of its divisors is an integer number (72099490).

Almost surely, 2^144198979 is an apocalyptic number.

144198979 is a deficient number, since it is larger than the sum of its proper divisors (1).

144198979 is an equidigital number, since it uses as much as digits as its factorization.

144198979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 52.

The square root of 144198979 is about 12008.2879295926. The cubic root of 144198979 is about 524.3895901826.

The spelling of 144198979 in words is "one hundred forty-four million, one hundred ninety-eight thousand, nine hundred seventy-nine".