81301034 has 8 divisors (see below), whose sum is σ = 125885568. Its totient is φ = 39339180.

The previous prime is 81301013. The next prime is 81301039. The reversal of 81301034 is 43010318.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 81300997 and 81301015.

It is not an unprimeable number, because it can be changed into a prime (81301039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655592 + ... + 655715.

It is an arithmetic number, because the mean of its divisors is an integer number (15735696).

Almost surely, 2^81301034 is an apocalyptic number.

81301034 is a deficient number, since it is larger than the sum of its proper divisors (44584534).

81301034 is a wasteful number, since it uses less digits than its factorization.

81301034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311340.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 81301034 is about 9016.7086012580. The cubic root of 81301034 is about 433.2102160427.

The spelling of 81301034 in words is "eighty-one million, three hundred one thousand, thirty-four".