34242143 has 4 divisors (see below), whose sum is σ = 36876168. Its totient is φ = 31608120.

The previous prime is 34242133. The next prime is 34242157. The reversal of 34242143 is 34124243.

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

It is a cyclic number.

It is not a de Polignac number, because 34242143 - 2⁶ = 34242079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34242113) 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, 1316993 + ... + 1317018.

It is an arithmetic number, because the mean of its divisors is an integer number (9219042).

Almost surely, 2^34242143 is an apocalyptic number.

34242143 is a deficient number, since it is larger than the sum of its proper divisors (2634025).

34242143 is a wasteful number, since it uses less digits than its factorization.

34242143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634024.

The product of its digits is 2304, while the sum is 23.

The square root of 34242143 is about 5851.6786480462. The cubic root of 34242143 is about 324.7284295488.

Adding to 34242143 its reverse (34124243), we get a palindrome (68366386).

The spelling of 34242143 in words is "thirty-four million, two hundred forty-two thousand, one hundred forty-three".