144427979 has 2 divisors, whose sum is σ = 144427980. Its totient is φ = 144427978.

The previous prime is 144427951. The next prime is 144427981. The reversal of 144427979 is 979724441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144427979 is a prime.

It is a super-2 number, since 2×144427979² = 41718882236048882, which contains 22 as substring.

Together with 144427981, 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 (144427919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72213989 + 72213990.

It is an arithmetic number, because the mean of its divisors is an integer number (72213990).

Almost surely, 2^144427979 is an apocalyptic number.

144427979 is a deficient number, since it is larger than the sum of its proper divisors (1).

144427979 is an equidigital number, since it uses as much as digits as its factorization.

144427979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 47.

The square root of 144427979 is about 12017.8192281295. The cubic root of 144427979 is about 524.6670348278.

The spelling of 144427979 in words is "one hundred forty-four million, four hundred twenty-seven thousand, nine hundred seventy-nine".