81034276 has 12 divisors (see below), whose sum is σ = 141931440. Its totient is φ = 40482440.

The previous prime is 81034273. The next prime is 81034321. The reversal of 81034276 is 67243018.

It is not an unprimeable number, because it can be changed into a prime (81034273) 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, 3010 + ... + 13081.

It is an arithmetic number, because the mean of its divisors is an integer number (11827620).

Almost surely, 2^81034276 is an apocalyptic number.

It is an amenable number.

81034276 is a deficient number, since it is larger than the sum of its proper divisors (60897164).

81034276 is a wasteful number, since it uses less digits than its factorization.

81034276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17354 (or 17352 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 81034276 is about 9001.9040208169. The cubic root of 81034276 is about 432.7358927897.

The spelling of 81034276 in words is "eighty-one million, thirty-four thousand, two hundred seventy-six".