81463162 has 16 divisors (see below), whose sum is σ = 134127072. Its totient is φ = 36799920.

The previous prime is 81463147. The next prime is 81463163. The reversal of 81463162 is 26136418.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (81463163) 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, 7773 + ... + 14944.

It is an arithmetic number, because the mean of its divisors is an integer number (8382942).

Almost surely, 2^81463162 is an apocalyptic number.

81463162 is a deficient number, since it is larger than the sum of its proper divisors (52663910).

81463162 is a wasteful number, since it uses less digits than its factorization.

81463162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22893.

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

The square root of 81463162 is about 9025.6945439118. The cubic root of 81463162 is about 433.4979896291.

The spelling of 81463162 in words is "eighty-one million, four hundred sixty-three thousand, one hundred sixty-two".