143023402 has 8 divisors (see below), whose sum is σ = 214655616. Its totient is φ = 71471532.

The previous prime is 143023399. The next prime is 143023403. The reversal of 143023402 is 204320341.

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

It is a self number, because there is not a number n which added to its sum of digits gives 143023402.

It is not an unprimeable number, because it can be changed into a prime (143023403) 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, 15418 + ... + 22885.

It is an arithmetic number, because the mean of its divisors is an integer number (26831952).

Almost surely, 2^143023402 is an apocalyptic number.

143023402 is a deficient number, since it is larger than the sum of its proper divisors (71632214).

143023402 is a wasteful number, since it uses less digits than its factorization.

143023402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40172.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 143023402 is about 11959.2391898482. The cubic root of 143023402 is about 522.9606776295.

Adding to 143023402 its reverse (204320341), we get a palindrome (347343743).

The spelling of 143023402 in words is "one hundred forty-three million, twenty-three thousand, four hundred two".