80124745 has 4 divisors (see below), whose sum is σ = 96149700. Its totient is φ = 64099792.

The previous prime is 80124679. The next prime is 80124787. The reversal of 80124745 is 54742108.

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 24890121 + 55234624 = 4989^2 + 7432^2 .

It is a cyclic number.

It is not a de Polignac number, because 80124745 - 2¹⁷ = 79993673 is a prime.

It is a super-2 number, since 2×80124745² = 12839949522630050, which contains 22 as substring.

It is an unprimeable number.

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, 8012470 + ... + 8012479.

It is an arithmetic number, because the mean of its divisors is an integer number (24037425).

Almost surely, 2^80124745 is an apocalyptic number.

It is an amenable number.

80124745 is a deficient number, since it is larger than the sum of its proper divisors (16024955).

80124745 is a wasteful number, since it uses less digits than its factorization.

80124745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16024954.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 80124745 is about 8951.2426511630. The cubic root of 80124745 is about 431.1107841608.

The spelling of 80124745 in words is "eighty million, one hundred twenty-four thousand, seven hundred forty-five".