81534083 has 8 divisors (see below), whose sum is σ = 82752000. Its totient is φ = 80320968.

The previous prime is 81534077. The next prime is 81534097. The reversal of 81534083 is 38043518.

It is a happy number.

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 81534083 - 2¹⁴ = 81517699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81534683) 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, 46460 + ... + 48182.

It is an arithmetic number, because the mean of its divisors is an integer number (10344000).

Almost surely, 2^81534083 is an apocalyptic number.

81534083 is a deficient number, since it is larger than the sum of its proper divisors (1217917).

81534083 is a wasteful number, since it uses less digits than its factorization.

81534083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 81534083 is about 9029.6225281016. The cubic root of 81534083 is about 433.6237527865.

The spelling of 81534083 in words is "eighty-one million, five hundred thirty-four thousand, eighty-three".