143942319 has 16 divisors (see below), whose sum is σ = 213606240. Its totient is φ = 95800320.

The previous prime is 143942299. The next prime is 143942327. The reversal of 143942319 is 913249341.

It is not a de Polignac number, because 143942319 - 2⁵ = 143942287 is a prime.

It is a super-2 number, since 2×143942319² = 41438782398195522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143942369) 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 in 15 ways as a sum of consecutive naturals, for example, 13149 + ... + 21465.

It is an arithmetic number, because the mean of its divisors is an integer number (13350390).

Almost surely, 2^143942319 is an apocalyptic number.

143942319 is a deficient number, since it is larger than the sum of its proper divisors (69663921).

143942319 is an equidigital number, since it uses as much as digits as its factorization.

143942319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8967 (or 8961 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 143942319 is about 11997.5963842763. The cubic root of 143942319 is about 524.0782847803.

The spelling of 143942319 in words is "one hundred forty-three million, nine hundred forty-two thousand, three hundred nineteen".