71194321 has 16 divisors (see below), whose sum is σ = 80990208. Its totient is φ = 61995600.

The previous prime is 71194313. The next prime is 71194373. The reversal of 71194321 is 12349117.

It is a cyclic number.

It is not a de Polignac number, because 71194321 - 2³ = 71194313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71194321.

It is not an unprimeable number, because it can be changed into a prime (71194301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34110 + ... + 36136.

It is an arithmetic number, because the mean of its divisors is an integer number (5061888).

Almost surely, 2^71194321 is an apocalyptic number.

It is an amenable number.

71194321 is a deficient number, since it is larger than the sum of its proper divisors (9795887).

71194321 is a wasteful number, since it uses less digits than its factorization.

71194321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172.

The product of its digits is 1512, while the sum is 28.

The square root of 71194321 is about 8437.6727241580. The cubic root of 71194321 is about 414.4591997665.

The spelling of 71194321 in words is "seventy-one million, one hundred ninety-four thousand, three hundred twenty-one".