81112035 has 8 divisors (see below), whose sum is σ = 129779280. Its totient is φ = 43259744.

The previous prime is 81112001. The next prime is 81112037. The reversal of 81112035 is 53021118.

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

It is a cyclic number.

It is not a de Polignac number, because 81112035 - 2¹⁰ = 81111011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (81112037) 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, 2703720 + ... + 2703749.

It is an arithmetic number, because the mean of its divisors is an integer number (16222410).

Almost surely, 2^81112035 is an apocalyptic number.

81112035 is a deficient number, since it is larger than the sum of its proper divisors (48667245).

81112035 is a wasteful number, since it uses less digits than its factorization.

81112035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407477.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 81112035 is about 9006.2220159177. Note that the first 3 decimals coincide. The cubic root of 81112035 is about 432.8742636729.

The spelling of 81112035 in words is "eighty-one million, one hundred twelve thousand, thirty-five".