143481619 has 2 divisors, whose sum is σ = 143481620. Its totient is φ = 143481618.

The previous prime is 143481599. The next prime is 143481623. The reversal of 143481619 is 916184341.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143481619 is a prime.

It is a super-2 number, since 2×143481619² = 41173949981722322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143481119) 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, 71740809 + 71740810.

It is an arithmetic number, because the mean of its divisors is an integer number (71740810).

Almost surely, 2^143481619 is an apocalyptic number.

143481619 is a deficient number, since it is larger than the sum of its proper divisors (1).

143481619 is an equidigital number, since it uses as much as digits as its factorization.

143481619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 143481619 is about 11978.3813180246. The cubic root of 143481619 is about 523.5185677288.

The spelling of 143481619 in words is "one hundred forty-three million, four hundred eighty-one thousand, six hundred nineteen".