81086302 has 8 divisors (see below), whose sum is σ = 132686712. Its totient is φ = 36857400.

The previous prime is 81086251. The next prime is 81086309. The reversal of 81086302 is 20368018.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81086309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842849 + ... + 1842892.

It is an arithmetic number, because the mean of its divisors is an integer number (16585839).

Almost surely, 2^81086302 is an apocalyptic number.

81086302 is a deficient number, since it is larger than the sum of its proper divisors (51600410).

81086302 is a wasteful number, since it uses less digits than its factorization.

81086302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685754.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 81086302 is about 9004.7932791375. The cubic root of 81086302 is about 432.8284820096.

The spelling of 81086302 in words is "eighty-one million, eighty-six thousand, three hundred two".