80159545 has 4 divisors (see below), whose sum is σ = 96191460. Its totient is φ = 64127632.

The previous prime is 80159543. The next prime is 80159549. The reversal of 80159545 is 54595108.

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 14160169 + 65999376 = 3763^2 + 8124^2 .

It is a cyclic number.

It is not a de Polignac number, because 80159545 - 2¹ = 80159543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80159543) 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, 8015950 + ... + 8015959.

It is an arithmetic number, because the mean of its divisors is an integer number (24047865).

Almost surely, 2^80159545 is an apocalyptic number.

It is an amenable number.

80159545 is a deficient number, since it is larger than the sum of its proper divisors (16031915).

80159545 is a wasteful number, since it uses less digits than its factorization.

80159545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16031914.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 80159545 is about 8953.1863043276. The cubic root of 80159545 is about 431.1731888683.

The spelling of 80159545 in words is "eighty million, one hundred fifty-nine thousand, five hundred forty-five".