81467295 has 48 divisors (see below), whose sum is σ = 161344512. Its totient is φ = 34369920.

The previous prime is 81467263. The next prime is 81467297. The reversal of 81467295 is 59276418.

It is not a de Polignac number, because 81467295 - 2⁵ = 81467263 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81467297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15450 + ... + 20040.

It is an arithmetic number, because the mean of its divisors is an integer number (3361344).

Almost surely, 2^81467295 is an apocalyptic number.

81467295 is a deficient number, since it is larger than the sum of its proper divisors (79877217).

81467295 is a wasteful number, since it uses less digits than its factorization.

81467295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632 (or 4619 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 81467295 is about 9025.9234984571. The cubic root of 81467295 is about 433.5053206192.

The spelling of 81467295 in words is "eighty-one million, four hundred sixty-seven thousand, two hundred ninety-five".