143213402 has 8 divisors (see below), whose sum is σ = 214871412. Its totient is φ = 71589600.

The previous prime is 143213381. The next prime is 143213437. The reversal of 143213402 is 204312341.

It can be written as a sum of positive squares in 2 ways, for example, as 119486761 + 23726641 = 10931^2 + 4871^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9752 + ... + 19532.

Almost surely, 2^143213402 is an apocalyptic number.

143213402 is a deficient number, since it is larger than the sum of its proper divisors (71658010).

143213402 is an equidigital number, since it uses as much as digits as its factorization.

143213402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17104.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 143213402 is about 11967.1802025373. The cubic root of 143213402 is about 523.1921515475.

Adding to 143213402 its reverse (204312341), we get a palindrome (347525743).

The spelling of 143213402 in words is "one hundred forty-three million, two hundred thirteen thousand, four hundred two".