80372249 has 4 divisors (see below), whose sum is σ = 80390436. Its totient is φ = 80354064.

The previous prime is 80372233. The next prime is 80372273. The reversal of 80372249 is 94227308.

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

It can be written as a sum of positive squares in 2 ways, for example, as 80227849 + 144400 = 8957^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 80372249 - 2⁴ = 80372233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80375249) 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, 2267 + ... + 12879.

It is an arithmetic number, because the mean of its divisors is an integer number (20097609).

Almost surely, 2^80372249 is an apocalyptic number.

It is an amenable number.

80372249 is a deficient number, since it is larger than the sum of its proper divisors (18187).

80372249 is a wasteful number, since it uses less digits than its factorization.

80372249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18186.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 80372249 is about 8965.0571108053. The cubic root of 80372249 is about 431.5542258847.

The spelling of 80372249 in words is "eighty million, three hundred seventy-two thousand, two hundred forty-nine".