80113591 has 4 divisors (see below), whose sum is σ = 80194000. Its totient is φ = 80033184.

The previous prime is 80113567. The next prime is 80113597. The reversal of 80113591 is 19531108.

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 80113591 - 2⁵ = 80113559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80113597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38691 + ... + 40708.

It is an arithmetic number, because the mean of its divisors is an integer number (20048500).

Almost surely, 2^80113591 is an apocalyptic number.

80113591 is a deficient number, since it is larger than the sum of its proper divisors (80409).

80113591 is a wasteful number, since it uses less digits than its factorization.

80113591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80408.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 80113591 is about 8950.6195874923. The cubic root of 80113591 is about 431.0907785523.

Adding to 80113591 its reverse (19531108), we get a palindrome (99644699).

The spelling of 80113591 in words is "eighty million, one hundred thirteen thousand, five hundred ninety-one".