81035834 has 16 divisors (see below), whose sum is σ = 135108000. Its totient is φ = 36138960.

The previous prime is 81035827. The next prime is 81035839. The reversal of 81035834 is 43853018.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 81035834.

It is not an unprimeable number, because it can be changed into a prime (81035839) 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 7 ways as a sum of consecutive naturals, for example, 33584 + ... + 35915.

It is an arithmetic number, because the mean of its divisors is an integer number (8444250).

Almost surely, 2^81035834 is an apocalyptic number.

81035834 is a deficient number, since it is larger than the sum of its proper divisors (54072166).

81035834 is a wasteful number, since it uses less digits than its factorization.

81035834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69565.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 81035834 is about 9001.9905576489. The cubic root of 81035834 is about 432.7386660944.

The spelling of 81035834 in words is "eighty-one million, thirty-five thousand, eight hundred thirty-four".