81202326 has 16 divisors (see below), whose sum is σ = 162499584. Its totient is φ = 27051624.

The previous prime is 81202321. The next prime is 81202337. The reversal of 81202326 is 62320218.

It is a junction number, because it is equal to n+sod(n) for n = 81202296 and 81202305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81202321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12315 + ... + 17721.

It is an arithmetic number, because the mean of its divisors is an integer number (10156224).

Almost surely, 2^81202326 is an apocalyptic number.

81202326 is an abundant number, since it is smaller than the sum of its proper divisors (81297258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81202326 is a wasteful number, since it uses less digits than its factorization.

81202326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7915.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 81202326 is about 9011.2333229142. The cubic root of 81202326 is about 433.0348241313.

The spelling of 81202326 in words is "eighty-one million, two hundred two thousand, three hundred twenty-six".