81083098 has 8 divisors (see below), whose sum is σ = 128779092. Its totient is φ = 38156736.

The previous prime is 81083083. The next prime is 81083111. The reversal of 81083098 is 89038018.

It can be written as a sum of positive squares in 2 ways, for example, as 80048809 + 1034289 = 8947^2 + 1017^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192365 + ... + 1192432.

Almost surely, 2^81083098 is an apocalyptic number.

81083098 is a deficient number, since it is larger than the sum of its proper divisors (47695994).

81083098 is a wasteful number, since it uses less digits than its factorization.

81083098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384816.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 81083098 is about 9004.6153721300. The cubic root of 81083098 is about 432.8227810849.

The spelling of 81083098 in words is "eighty-one million, eighty-three thousand, ninety-eight".