81032110 has 16 divisors (see below), whose sum is σ = 146304432. Its totient is φ = 32313600.

The previous prime is 81032069. The next prime is 81032123. The reversal of 81032110 is 1123018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8931 + ... + 15550.

It is an arithmetic number, because the mean of its divisors is an integer number (9144027).

Almost surely, 2^81032110 is an apocalyptic number.

81032110 is a deficient number, since it is larger than the sum of its proper divisors (65272322).

81032110 is a wasteful number, since it uses less digits than its factorization.

81032110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24819.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 81032110 is about 9001.7837121317. The cubic root of 81032110 is about 432.7320371608.

Adding to 81032110 its reverse (1123018), we get a palindrome (82155128).

The spelling of 81032110 in words is "eighty-one million, thirty-two thousand, one hundred ten".