81376034 has 8 divisors (see below), whose sum is σ = 122124288. Its totient is φ = 40667940.

The previous prime is 81376033. The next prime is 81376037. The reversal of 81376034 is 43067318.

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

It is not an unprimeable number, because it can be changed into a prime (81376033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4322 + ... + 13469.

It is an arithmetic number, because the mean of its divisors is an integer number (15265536).

Almost surely, 2^81376034 is an apocalyptic number.

81376034 is a deficient number, since it is larger than the sum of its proper divisors (40748254).

81376034 is a wasteful number, since it uses less digits than its factorization.

81376034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 81376034 is about 9020.8665880834. The cubic root of 81376034 is about 433.3433868805.

The spelling of 81376034 in words is "eighty-one million, three hundred seventy-six thousand, thirty-four".