81341849 has 8 divisors (see below), whose sum is σ = 82188288. Its totient is φ = 80498880.

The previous prime is 81341837. The next prime is 81341863. The reversal of 81341849 is 94814318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 81341849 - 2⁴ = 81341833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81341809) 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, 91889 + ... + 92769.

It is an arithmetic number, because the mean of its divisors is an integer number (10273536).

Almost surely, 2^81341849 is an apocalyptic number.

It is an amenable number.

81341849 is a deficient number, since it is larger than the sum of its proper divisors (846439).

81341849 is a wasteful number, since it uses less digits than its factorization.

81341849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735.

The product of its digits is 27648, while the sum is 38.

The square root of 81341849 is about 9018.9716154338. The cubic root of 81341849 is about 433.2826977652.

The spelling of 81341849 in words is "eighty-one million, three hundred forty-one thousand, eight hundred forty-nine".