34156739 has 4 divisors (see below), whose sum is σ = 34169856. Its totient is φ = 34143624.

The previous prime is 34156711. The next prime is 34156747. The reversal of 34156739 is 93765143.

It is a happy number.

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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34156739 is a prime.

It is a super-2 number, since 2×34156739² = 2333365638228242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34156709) 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, 1184 + ... + 8349.

It is an arithmetic number, because the mean of its divisors is an integer number (8542464).

Almost surely, 2^34156739 is an apocalyptic number.

34156739 is a deficient number, since it is larger than the sum of its proper divisors (13117).

34156739 is an equidigital number, since it uses as much as digits as its factorization.

34156739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13116.

The product of its digits is 68040, while the sum is 38.

The square root of 34156739 is about 5844.3766990159. The cubic root of 34156739 is about 324.4582342775.

The spelling of 34156739 in words is "thirty-four million, one hundred fifty-six thousand, seven hundred thirty-nine".