34181861 has 12 divisors (see below), whose sum is σ = 40689792. Its totient is φ = 28615608.

The previous prime is 34181843. The next prime is 34181863. The reversal of 34181861 is 16818143.

It is a happy number.

It is not a de Polignac number, because 34181861 - 2²² = 29987557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34181863) 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 in 11 ways as a sum of consecutive naturals, for example, 6005 + ... + 10218.

It is an arithmetic number, because the mean of its divisors is an integer number (3390816).

Almost surely, 2^34181861 is an apocalyptic number.

It is an amenable number.

34181861 is a deficient number, since it is larger than the sum of its proper divisors (6507931).

34181861 is a wasteful number, since it uses less digits than its factorization.

34181861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16280 (or 16273 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 34181861 is about 5846.5255494182. The cubic root of 34181861 is about 324.5377602361.

The spelling of 34181861 in words is "thirty-four million, one hundred eighty-one thousand, eight hundred sixty-one".