80564145 has 16 divisors (see below), whose sum is σ = 129029760. Its totient is φ = 42925184.

The previous prime is 80564137. The next prime is 80564153. The reversal of 80564145 is 54146508.

It is an interprime number because it is at equal distance from previous prime (80564137) and next prime (80564153).

It is a cyclic number.

It is not a de Polignac number, because 80564145 - 2³ = 80564137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18541 + ... + 22469.

It is an arithmetic number, because the mean of its divisors is an integer number (8064360).

Almost surely, 2^80564145 is an apocalyptic number.

It is an amenable number.

80564145 is a deficient number, since it is larger than the sum of its proper divisors (48465615).

80564145 is a wasteful number, since it uses less digits than its factorization.

80564145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5304.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 80564145 is about 8975.7531717400. The cubic root of 80564145 is about 431.8974111250.

The spelling of 80564145 in words is "eighty million, five hundred sixty-four thousand, one hundred forty-five".