1243180 has 24 divisors (see below), whose sum is σ = 2656080. Its totient is φ = 488640.

The previous prime is 1243169. The next prime is 1243181. The reversal of 1243180 is 813421.

It is not an unprimeable number, because it can be changed into a prime (1243181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711 + ... + 1729.

It is an arithmetic number, because the mean of its divisors is an integer number (110670).

2^1243180 is an apocalyptic number.

1243180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243180 is an abundant number, since it is smaller than the sum of its proper divisors (1412900).

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

1243180 is a wasteful number, since it uses less digits than its factorization.

1243180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1243180 is about 1114.9798204452. The cubic root of 1243180 is about 107.5254671950.

The spelling of 1243180 in words is "one million, two hundred forty-three thousand, one hundred eighty".