81146362 has 16 divisors (see below), whose sum is σ = 134606592. Its totient is φ = 36378720.

The previous prime is 81146357. The next prime is 81146363. The reversal of 81146362 is 26364118.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (81146363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23658 + ... + 26869.

It is an arithmetic number, because the mean of its divisors is an integer number (8412912).

Almost surely, 2^81146362 is an apocalyptic number.

81146362 is a deficient number, since it is larger than the sum of its proper divisors (53460230).

81146362 is a wasteful number, since it uses less digits than its factorization.

81146362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50613.

The product of its digits is 6912, while the sum is 31.

The square root of 81146362 is about 9008.1275523829. The cubic root of 81146362 is about 432.9353198781.

The spelling of 81146362 in words is "eighty-one million, one hundred forty-six thousand, three hundred sixty-two".