81163102 has 8 divisors (see below), whose sum is σ = 124576056. Its totient is φ = 39637752.

The previous prime is 81163097. The next prime is 81163111. The reversal of 81163102 is 20136118.

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, 471793 + ... + 471964.

It is an arithmetic number, because the mean of its divisors is an integer number (15572007).

Almost surely, 2^81163102 is an apocalyptic number.

81163102 is a deficient number, since it is larger than the sum of its proper divisors (43412954).

81163102 is a wasteful number, since it uses less digits than its factorization.

81163102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943802.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 81163102 is about 9009.0566653785. The cubic root of 81163102 is about 432.9650884706.

The spelling of 81163102 in words is "eighty-one million, one hundred sixty-three thousand, one hundred two".