1245180 has 24 divisors (see below), whose sum is σ = 3486672. Its totient is φ = 332032.

The previous prime is 1245169. The next prime is 1245187. The reversal of 1245180 is 815421.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245187) 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, 10317 + ... + 10436.

It is an arithmetic number, because the mean of its divisors is an integer number (145278).

2^1245180 is an apocalyptic number.

1245180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245180 is an abundant number, since it is smaller than the sum of its proper divisors (2241492).

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

1245180 is a wasteful number, since it uses less digits than its factorization.

1245180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20765 (or 20763 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1245180 is about 1115.8763372346. The cubic root of 1245180 is about 107.5830978182.

The spelling of 1245180 in words is "one million, two hundred forty-five thousand, one hundred eighty".