80751959 has 4 divisors (see below), whose sum is σ = 80800920. Its totient is φ = 80703000.

The previous prime is 80751949. The next prime is 80751961. The reversal of 80751959 is 95915708.

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 80751959 - 2⁸ = 80751703 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 (80751929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21917 + ... + 25334.

It is an arithmetic number, because the mean of its divisors is an integer number (20200230).

Almost surely, 2^80751959 is an apocalyptic number.

80751959 is a deficient number, since it is larger than the sum of its proper divisors (48961).

80751959 is a wasteful number, since it uses less digits than its factorization.

80751959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48960.

The product of its (nonzero) digits is 113400, while the sum is 44.

The square root of 80751959 is about 8986.2093788204. The cubic root of 80751959 is about 432.2327688621.

The spelling of 80751959 in words is "eighty million, seven hundred fifty-one thousand, nine hundred fifty-nine".