34142243 has 4 divisors (see below), whose sum is σ = 34155888. Its totient is φ = 34128600.

The previous prime is 34142237. The next prime is 34142291. The reversal of 34142243 is 34224143.

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 34142243 - 2¹² = 34138147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34142203) 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, 1871 + ... + 8472.

It is an arithmetic number, because the mean of its divisors is an integer number (8538972).

Almost surely, 2^34142243 is an apocalyptic number.

34142243 is a deficient number, since it is larger than the sum of its proper divisors (13645).

34142243 is a wasteful number, since it uses less digits than its factorization.

34142243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13644.

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

The square root of 34142243 is about 5843.1364009409. The cubic root of 34142243 is about 324.4123281379.

Adding to 34142243 its reverse (34224143), we get a palindrome (68366386).

The spelling of 34142243 in words is "thirty-four million, one hundred forty-two thousand, two hundred forty-three".