81112376 has 8 divisors (see below), whose sum is σ = 152085720. Its totient is φ = 40556184.

The previous prime is 81112363. The next prime is 81112379. The reversal of 81112376 is 67321118.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81112379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5069516 + ... + 5069531.

It is an arithmetic number, because the mean of its divisors is an integer number (19010715).

Almost surely, 2^81112376 is an apocalyptic number.

It is an amenable number.

81112376 is a deficient number, since it is larger than the sum of its proper divisors (70973344).

81112376 is a wasteful number, since it uses less digits than its factorization.

81112376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10139053 (or 10139049 counting only the distinct ones).

The product of its digits is 2016, while the sum is 29.

The square root of 81112376 is about 9006.2409472543. The cubic root of 81112376 is about 432.8748702821.

The spelling of 81112376 in words is "eighty-one million, one hundred twelve thousand, three hundred seventy-six".