34140231 has 16 divisors (see below), whose sum is σ = 50705920. Its totient is φ = 22702680.

The previous prime is 34140209. The next prime is 34140247. The reversal of 34140231 is 13204143.

It is not a de Polignac number, because 34140231 - 2⁷ = 34140103 is a prime.

It is a super-2 number, since 2×34140231² = 2331110745466722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34140251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11136 + ... + 13866.

It is an arithmetic number, because the mean of its divisors is an integer number (3169120).

Almost surely, 2^34140231 is an apocalyptic number.

34140231 is a deficient number, since it is larger than the sum of its proper divisors (16565689).

34140231 is a wasteful number, since it uses less digits than its factorization.

34140231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203 (or 3197 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 34140231 is about 5842.9642305939. The cubic root of 34140231 is about 324.4059554808.

Adding to 34140231 its reverse (13204143), we get a palindrome (47344374).

The spelling of 34140231 in words is "thirty-four million, one hundred forty thousand, two hundred thirty-one".