34139261 has 8 divisors (see below), whose sum is σ = 37459800. Its totient is φ = 30917952.

The previous prime is 34139233. The next prime is 34139267. The reversal of 34139261 is 16293143.

34139261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7873636 + 26265625 = 2806^2 + 5125^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-34139261 is a prime.

It is a super-2 number, since 2×34139261² = 2330978283252242, 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 (34139267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24086 + ... + 25463.

It is an arithmetic number, because the mean of its divisors is an integer number (4682475).

Almost surely, 2^34139261 is an apocalyptic number.

It is an amenable number.

34139261 is a deficient number, since it is larger than the sum of its proper divisors (3320539).

34139261 is a wasteful number, since it uses less digits than its factorization.

34139261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49615.

The product of its digits is 3888, while the sum is 29.

The square root of 34139261 is about 5842.8812241907. The cubic root of 34139261 is about 324.4028830864.

The spelling of 34139261 in words is "thirty-four million, one hundred thirty-nine thousand, two hundred sixty-one".