81250982 has 8 divisors (see below), whose sum is σ = 126079200. Its totient is φ = 39224584.

The previous prime is 81250979. The next prime is 81250991. The reversal of 81250982 is 28905218.

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

It is a congruent number.

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, 700382 + ... + 700497.

It is an arithmetic number, because the mean of its divisors is an integer number (15759900).

Almost surely, 2^81250982 is an apocalyptic number.

81250982 is a deficient number, since it is larger than the sum of its proper divisors (44828218).

81250982 is a wasteful number, since it uses less digits than its factorization.

81250982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400910.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 81250982 is about 9013.9326600547. The cubic root of 81250982 is about 433.1212975799.

The spelling of 81250982 in words is "eighty-one million, two hundred fifty thousand, nine hundred eighty-two".