34138139 has 4 divisors (see below), whose sum is σ = 39015024. Its totient is φ = 29261256.

The previous prime is 34138129. The next prime is 34138147. The reversal of 34138139 is 93183143.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34138139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34138109) 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, 2438432 + ... + 2438445.

It is an arithmetic number, because the mean of its divisors is an integer number (9753756).

Almost surely, 2^34138139 is an apocalyptic number.

34138139 is a deficient number, since it is larger than the sum of its proper divisors (4876885).

34138139 is an equidigital number, since it uses as much as digits as its factorization.

34138139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876884.

The product of its digits is 7776, while the sum is 32.

The square root of 34138139 is about 5842.7852091276. The cubic root of 34138139 is about 324.3993291721.

The spelling of 34138139 in words is "thirty-four million, one hundred thirty-eight thousand, one hundred thirty-nine".