1271180 has 12 divisors (see below), whose sum is σ = 2669520. Its totient is φ = 508464.

The previous prime is 1271173. The next prime is 1271183. The reversal of 1271180 is 811721.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 63559 = 1271180 / (1 + 2 + 7 + 1 + 1 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (1271183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31760 + ... + 31799.

It is an arithmetic number, because the mean of its divisors is an integer number (222460).

2^1271180 is an apocalyptic number.

1271180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1271180 is an abundant number, since it is smaller than the sum of its proper divisors (1398340).

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

1271180 is a wasteful number, since it uses less digits than its factorization.

1271180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63568 (or 63566 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 1271180 is about 1127.4661857457. The cubic root of 1271180 is about 108.3267425313.

The spelling of 1271180 in words is "one million, two hundred seventy-one thousand, one hundred eighty".