80513271 has 30 divisors (see below), whose sum is σ = 125796440. Its totient is φ = 51314472.

The previous prime is 80513263. The next prime is 80513273. The reversal of 80513271 is 17231508.

80513271 is a `hidden beast` number, since 80 + 513 + 2 + 71 = 666.

It is not a de Polignac number, because 80513271 - 2³ = 80513263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80513273) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 41910 + ... + 43788.

Almost surely, 2^80513271 is an apocalyptic number.

80513271 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

80513271 is a deficient number, since it is larger than the sum of its proper divisors (45283169).

80513271 is a wasteful number, since it uses less digits than its factorization.

80513271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937 (or 1905 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 80513271 is about 8972.9187559010. The cubic root of 80513271 is about 431.8064816116.

Adding to 80513271 its reverse (17231508), we get a palindrome (97744779).

The spelling of 80513271 in words is "eighty million, five hundred thirteen thousand, two hundred seventy-one".