143233994 has 8 divisors (see below), whose sum is σ = 215079300. Its totient is φ = 71540896.

The previous prime is 143233991. The next prime is 143233999. The reversal of 143233994 is 499332341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 123988225 + 19245769 = 11135^2 + 4387^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (143233991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35669 + ... + 39480.

Almost surely, 2^143233994 is an apocalyptic number.

143233994 is a deficient number, since it is larger than the sum of its proper divisors (71845306).

143233994 is an equidigital number, since it uses as much as digits as its factorization.

143233994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76104.

The product of its digits is 69984, while the sum is 38.

The square root of 143233994 is about 11968.0405246640. The cubic root of 143233994 is about 523.2172261479.

The spelling of 143233994 in words is "one hundred forty-three million, two hundred thirty-three thousand, nine hundred ninety-four".