143424979 has 2 divisors, whose sum is σ = 143424980. Its totient is φ = 143424978.

The previous prime is 143424907. The next prime is 143424989. The reversal of 143424979 is 979424341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143424979 - 2⁷ = 143424851 is a prime.

It is not a weakly prime, because it can be changed into another prime (143424989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71712489 + 71712490.

It is an arithmetic number, because the mean of its divisors is an integer number (71712490).

Almost surely, 2^143424979 is an apocalyptic number.

143424979 is a deficient number, since it is larger than the sum of its proper divisors (1).

143424979 is an equidigital number, since it uses as much as digits as its factorization.

143424979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 43.

The square root of 143424979 is about 11976.0168253055. The cubic root of 143424979 is about 523.4496715768.

It can be divided in two parts, 14342 and 4979, that added together give a square (19321 = 139²).

The spelling of 143424979 in words is "one hundred forty-three million, four hundred twenty-four thousand, nine hundred seventy-nine".