80541645 has 8 divisors (see below), whose sum is σ = 128866656. Its totient is φ = 42955536.

The previous prime is 80541611. The next prime is 80541647. The reversal of 80541645 is 54614508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80541645 - 2¹¹ = 80539597 is a prime.

It is a super-3 number, since 3×80541645³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80541647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2684707 + ... + 2684736.

It is an arithmetic number, because the mean of its divisors is an integer number (16108332).

Almost surely, 2^80541645 is an apocalyptic number.

It is an amenable number.

80541645 is a deficient number, since it is larger than the sum of its proper divisors (48325011).

80541645 is a wasteful number, since it uses less digits than its factorization.

80541645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5369451.

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

The square root of 80541645 is about 8974.4997075046. The cubic root of 80541645 is about 431.8572005303.

The spelling of 80541645 in words is "eighty million, five hundred forty-one thousand, six hundred forty-five".