71581096 has 16 divisors (see below), whose sum is σ = 134892000. Its totient is φ = 35609904.

The previous prime is 71581087. The next prime is 71581123. The reversal of 71581096 is 69018517.

It is a super-2 number, since 2×71581096² = 10247706609122432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20890 + ... + 24073.

It is an arithmetic number, because the mean of its divisors is an integer number (8430750).

Almost surely, 2^71581096 is an apocalyptic number.

It is an amenable number.

71581096 is a deficient number, since it is larger than the sum of its proper divisors (63310904).

71581096 is a wasteful number, since it uses less digits than its factorization.

71581096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45168 (or 45164 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 71581096 is about 8460.5612106999. The cubic root of 71581096 is about 415.2083842417.

The spelling of 71581096 in words is "seventy-one million, five hundred eighty-one thousand, ninety-six".