144379931 has 2 divisors, whose sum is σ = 144379932. Its totient is φ = 144379930.

The previous prime is 144379919. The next prime is 144379933. The reversal of 144379931 is 139973441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144379931 - 2⁶ = 144379867 is a prime.

It is a super-2 number, since 2×144379931² = 41691128951129522, which contains 22 as substring.

Together with 144379933, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144379933) 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, 72189965 + 72189966.

It is an arithmetic number, because the mean of its divisors is an integer number (72189966).

Almost surely, 2^144379931 is an apocalyptic number.

144379931 is a deficient number, since it is larger than the sum of its proper divisors (1).

144379931 is an equidigital number, since it uses as much as digits as its factorization.

144379931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 41.

The square root of 144379931 is about 12015.8200302768. The cubic root of 144379931 is about 524.6088466617.

The spelling of 144379931 in words is "one hundred forty-four million, three hundred seventy-nine thousand, nine hundred thirty-one".