81202162 has 16 divisors (see below), whose sum is σ = 128764800. Its totient is φ = 38298960.

The previous prime is 81202159. The next prime is 81202171. The reversal of 81202162 is 26120218.

It is a super-2 number, since 2×81202162² = 13187582226948488, which contains 22 as substring.

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, 4612 + ... + 13552.

It is an arithmetic number, because the mean of its divisors is an integer number (8047800).

Almost surely, 2^81202162 is an apocalyptic number.

81202162 is a deficient number, since it is larger than the sum of its proper divisors (47562638).

81202162 is a wasteful number, since it uses less digits than its factorization.

81202162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9201.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 81202162 is about 9011.2242231564. The cubic root of 81202162 is about 433.0345326053.

It can be divided in two parts, 8120216 and 2, that added together give a palindrome (8120218).

The spelling of 81202162 in words is "eighty-one million, two hundred two thousand, one hundred sixty-two".