34181639 has 2 divisors, whose sum is σ = 34181640. Its totient is φ = 34181638.

The previous prime is 34181621. The next prime is 34181647. The reversal of 34181639 is 93618143.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34181639 - 2¹² = 34177543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34181599 and 34181608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34181039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17090819 + 17090820.

It is an arithmetic number, because the mean of its divisors is an integer number (17090820).

Almost surely, 2^34181639 is an apocalyptic number.

34181639 is a deficient number, since it is larger than the sum of its proper divisors (1).

34181639 is an equidigital number, since it uses as much as digits as its factorization.

34181639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 34181639 is about 5846.5065637524. The cubic root of 34181639 is about 324.5370576457.

The spelling of 34181639 in words is "thirty-four million, one hundred eighty-one thousand, six hundred thirty-nine".