71419091 has 4 divisors (see below), whose sum is σ = 75620232. Its totient is φ = 67217952.

The previous prime is 71419079. The next prime is 71419099. The reversal of 71419091 is 19091417.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71419091 - 2⁶ = 71419027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71419099) by changing a digit.

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, 2100545 + ... + 2100578.

It is an arithmetic number, because the mean of its divisors is an integer number (18905058).

Almost surely, 2^71419091 is an apocalyptic number.

71419091 is a deficient number, since it is larger than the sum of its proper divisors (4201141).

71419091 is a wasteful number, since it uses less digits than its factorization.

71419091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4201140.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 71419091 is about 8450.9816589554. The cubic root of 71419091 is about 414.8949092782.

The spelling of 71419091 in words is "seventy-one million, four hundred nineteen thousand, ninety-one".