81038295 has 48 divisors (see below), whose sum is σ = 153185760. Its totient is φ = 39391488.

The previous prime is 81038257. The next prime is 81038297. The reversal of 81038295 is 59283018.

It is not a de Polignac number, because 81038295 - 2⁶ = 81038231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81038297) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47721 + ... + 49389.

It is an arithmetic number, because the mean of its divisors is an integer number (3191370).

Almost surely, 2^81038295 is an apocalyptic number.

81038295 is a deficient number, since it is larger than the sum of its proper divisors (72147465).

81038295 is a wasteful number, since it uses less digits than its factorization.

81038295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776 (or 1773 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 81038295 is about 9002.1272486007. The cubic root of 81038295 is about 432.7430467041.

The spelling of 81038295 in words is "eighty-one million, thirty-eight thousand, two hundred ninety-five".