80144520 has 64 divisors (see below), whose sum is σ = 241081920. Its totient is φ = 21314304.

The previous prime is 80144497. The next prime is 80144521. The reversal of 80144520 is 2544108.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (80144521) 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 15 ways as a sum of consecutive naturals, for example, 62122 + ... + 63398.

It is an arithmetic number, because the mean of its divisors is an integer number (3766905).

Almost surely, 2^80144520 is an apocalyptic number.

It is an amenable number.

80144520 is an abundant number, since it is smaller than the sum of its proper divisors (160937400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80144520 is a wasteful number, since it uses less digits than its factorization.

80144520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814 (or 1810 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 80144520 is about 8952.3471782544. The cubic root of 80144520 is about 431.1462476725.

Adding to 80144520 its reverse (2544108), we get a palindrome (82688628).

The spelling of 80144520 in words is "eighty million, one hundred forty-four thousand, five hundred twenty".