34102381 has 2 divisors, whose sum is σ = 34102382. Its totient is φ = 34102380.

The previous prime is 34102379. The next prime is 34102403. The reversal of 34102381 is 18320143.

It is an a-pointer prime, because the next prime (34102403) can be obtained adding 34102381 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33246756 + 855625 = 5766^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 34102381 - 2¹ = 34102379 is a prime.

It is a super-2 number, since 2×34102381² = 2325944779738322, which contains 22 as substring.

Together with 34102379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34102331) 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 as a sum of consecutive naturals, namely, 17051190 + 17051191.

It is an arithmetic number, because the mean of its divisors is an integer number (17051191).

Almost surely, 2^34102381 is an apocalyptic number.

It is an amenable number.

34102381 is a deficient number, since it is larger than the sum of its proper divisors (1).

34102381 is an equidigital number, since it uses as much as digits as its factorization.

34102381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 34102381 is about 5839.7243941816. The cubic root of 34102381 is about 324.2860255572.

The spelling of 34102381 in words is "thirty-four million, one hundred two thousand, three hundred eighty-one".