81833195 has 16 divisors (see below), whose sum is σ = 102961152. Its totient is φ = 62319840.

The previous prime is 81833153. The next prime is 81833221. The reversal of 81833195 is 59133818.

It is not a de Polignac number, because 81833195 - 2⁸ = 81832939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24050 + ... + 27240.

It is an arithmetic number, because the mean of its divisors is an integer number (6435072).

Almost surely, 2^81833195 is an apocalyptic number.

81833195 is a deficient number, since it is larger than the sum of its proper divisors (21127957).

81833195 is a wasteful number, since it uses less digits than its factorization.

81833195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442.

The product of its digits is 25920, while the sum is 38.

The square root of 81833195 is about 9046.1701841166. The cubic root of 81833195 is about 434.1533627337.

It can be divided in two parts, 81833 and 195, that added together give a palindrome (82028).

The spelling of 81833195 in words is "eighty-one million, eight hundred thirty-three thousand, one hundred ninety-five".