143340394 has 4 divisors (see below), whose sum is σ = 215010594. Its totient is φ = 71670196.

The previous prime is 143340377. The next prime is 143340397. The reversal of 143340394 is 493043341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 132549169 + 10791225 = 11513^2 + 3285^2 .

It is not an unprimeable number, because it can be changed into a prime (143340397) 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, 35835097 + ... + 35835100.

Almost surely, 2^143340394 is an apocalyptic number.

143340394 is a deficient number, since it is larger than the sum of its proper divisors (71670200).

143340394 is an equidigital number, since it uses as much as digits as its factorization.

143340394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71670199.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 143340394 is about 11972.4848715711. The cubic root of 143340394 is about 523.3467497158.

The spelling of 143340394 in words is "one hundred forty-three million, three hundred forty thousand, three hundred ninety-four".