143402002 has 4 divisors (see below), whose sum is σ = 215103006. Its totient is φ = 71701000.

The previous prime is 143401981. The next prime is 143402009. The reversal of 143402002 is 200204341.

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., 129481641 + 13920361 = 11379^2 + 3731^2 .

It is not an unprimeable number, because it can be changed into a prime (143402009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35850499 + ... + 35850502.

Almost surely, 2^143402002 is an apocalyptic number.

143402002 is a deficient number, since it is larger than the sum of its proper divisors (71701004).

143402002 is an equidigital number, since it uses as much as digits as its factorization.

143402002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71701003.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 143402002 is about 11975.0574946428. The cubic root of 143402002 is about 523.4217174842.

Adding to 143402002 its reverse (200204341), we get a palindrome (343606343).

The spelling of 143402002 in words is "one hundred forty-three million, four hundred two thousand, two".