34156181 has 4 divisors (see below), whose sum is σ = 34169100. Its totient is φ = 34143264.

The previous prime is 34156163. The next prime is 34156193. The reversal of 34156181 is 18165143.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7022500 + 27133681 = 2650^2 + 5209^2 .

It is a cyclic number.

It is not a de Polignac number, because 34156181 - 2⁶ = 34156117 is a prime.

It is a super-2 number, since 2×34156181² = 2333289401009522, 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 (34156781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896 + ... + 8313.

It is an arithmetic number, because the mean of its divisors is an integer number (8542275).

Almost surely, 2^34156181 is an apocalyptic number.

It is an amenable number.

34156181 is a deficient number, since it is larger than the sum of its proper divisors (12919).

34156181 is an equidigital number, since it uses as much as digits as its factorization.

34156181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12918.

The product of its digits is 2880, while the sum is 29.

The square root of 34156181 is about 5844.3289606250. The cubic root of 34156181 is about 324.4564674355.

The spelling of 34156181 in words is "thirty-four million, one hundred fifty-six thousand, one hundred eighty-one".