80131560 has 64 divisors (see below), whose sum is σ = 240986880. Its totient is φ = 21315840.

The previous prime is 80131549. The next prime is 80131619. The reversal of 80131560 is 6513108.

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

It is a self number, because there is not a number n which added to its sum of digits gives 80131560.

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, 87505 + ... + 88415.

It is an arithmetic number, because the mean of its divisors is an integer number (3765420).

Almost surely, 2^80131560 is an apocalyptic number.

It is an amenable number.

80131560 is an abundant number, since it is smaller than the sum of its proper divisors (160855320).

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

80131560 is a wasteful number, since it uses less digits than its factorization.

80131560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1654 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 80131560 is about 8951.6233164717. The cubic root of 80131560 is about 431.1230065053.

Adding to 80131560 its reverse (6513108), we get a palindrome (86644668).

The spelling of 80131560 in words is "eighty million, one hundred thirty-one thousand, five hundred sixty".