81354162 has 32 divisors (see below), whose sum is σ = 172555200. Its totient is φ = 25498368.

The previous prime is 81354113. The next prime is 81354167. The reversal of 81354162 is 26145318.

It is not an unprimeable number, because it can be changed into a prime (81354167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13014 + ... + 18222.

It is an arithmetic number, because the mean of its divisors is an integer number (5392350).

Almost surely, 2^81354162 is an apocalyptic number.

81354162 is an abundant number, since it is smaller than the sum of its proper divisors (91201038).

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

81354162 is a wasteful number, since it uses less digits than its factorization.

81354162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5370.

The product of its digits is 5760, while the sum is 30.

The square root of 81354162 is about 9019.6542062321. The cubic root of 81354162 is about 433.3045591676.

The spelling of 81354162 in words is "eighty-one million, three hundred fifty-four thousand, one hundred sixty-two".