81202 has 8 divisors (see below), whose sum is σ = 132912. Its totient is φ = 36900.

The previous prime is 81199. The next prime is 81203. The reversal of 81202 is 20218.

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

It is an Ulam number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (81203) 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, 1824 + ... + 1867.

It is an arithmetic number, because the mean of its divisors is an integer number (16614).

2⁸¹²⁰² is an apocalyptic number.

81202 is a deficient number, since it is larger than the sum of its proper divisors (51710).

81202 is a wasteful number, since it uses less digits than its factorization.

81202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 81202 is about 284.9596462659. The cubic root of 81202 is about 43.3034244634.

The spelling of 81202 in words is "eighty-one thousand, two hundred two".