81034851 has 8 divisors (see below), whose sum is σ = 109038160. Its totient is φ = 53527392.

The previous prime is 81034843. The next prime is 81034853. The reversal of 81034851 is 15843018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 81034851 - 2³ = 81034843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81034853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123580 + ... + 124233.

It is an arithmetic number, because the mean of its divisors is an integer number (13629770).

Almost surely, 2^81034851 is an apocalyptic number.

81034851 is a deficient number, since it is larger than the sum of its proper divisors (28003309).

81034851 is a wasteful number, since it uses less digits than its factorization.

81034851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247925.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 81034851 is about 9001.9359584480. The cubic root of 81034851 is about 432.7369163177.

Adding to 81034851 its reverse (15843018), we get a palindrome (96877869).

The spelling of 81034851 in words is "eighty-one million, thirty-four thousand, eight hundred fifty-one".