342221143 has 4 divisors (see below), whose sum is σ = 373332168. Its totient is φ = 311110120.

The previous prime is 342221119. The next prime is 342221167. The reversal of 342221143 is 341122243.

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

It is an interprime number because it is at equal distance from previous prime (342221119) and next prime (342221167).

It is a cyclic number.

It is not a de Polignac number, because 342221143 - 2¹³ = 342212951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342291143) 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, 15555496 + ... + 15555517.

It is an arithmetic number, because the mean of its divisors is an integer number (93333042).

Almost surely, 2^342221143 is an apocalyptic number.

342221143 is a deficient number, since it is larger than the sum of its proper divisors (31111025).

342221143 is a wasteful number, since it uses less digits than its factorization.

342221143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31111024.

The product of its digits is 1152, while the sum is 22.

The square root of 342221143 is about 18499.2200646406. The cubic root of 342221143 is about 699.4697637640.

Adding to 342221143 its reverse (341122243), we get a palindrome (683343386).

The spelling of 342221143 in words is "three hundred forty-two million, two hundred twenty-one thousand, one hundred forty-three".