320202142 has 8 divisors (see below), whose sum is σ = 517249656. Its totient is φ = 147785592.

The previous prime is 320202139. The next prime is 320202143. The reversal of 320202142 is 241202023.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320202143) 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, 6157708 + ... + 6157759.

It is an arithmetic number, because the mean of its divisors is an integer number (64656207).

Almost surely, 2^320202142 is an apocalyptic number.

320202142 is a deficient number, since it is larger than the sum of its proper divisors (197047514).

320202142 is a wasteful number, since it uses less digits than its factorization.

320202142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12315482.

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

The square root of 320202142 is about 17894.1929686700. The cubic root of 320202142 is about 684.1343725040.

Adding to 320202142 its reverse (241202023), we get a palindrome (561404165).

The spelling of 320202142 in words is "three hundred twenty million, two hundred two thousand, one hundred forty-two".