81096356 has 12 divisors (see below), whose sum is σ = 154820400. Its totient is φ = 36861960.

The previous prime is 81096299. The next prime is 81096359. The reversal of 81096356 is 65369018.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (81096359) 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, 921506 + ... + 921593.

It is an arithmetic number, because the mean of its divisors is an integer number (12901700).

Almost surely, 2^81096356 is an apocalyptic number.

It is an amenable number.

81096356 is a deficient number, since it is larger than the sum of its proper divisors (73724044).

81096356 is a wasteful number, since it uses less digits than its factorization.

81096356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843114 (or 1843112 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 81096356 is about 9005.3515200685. The cubic root of 81096356 is about 432.8463702662.

The spelling of 81096356 in words is "eighty-one million, ninety-six thousand, three hundred fifty-six".