1251180 has 96 divisors (see below), whose sum is σ = 4462080. Its totient is φ = 285120.

The previous prime is 1251179. The next prime is 1251227. The reversal of 1251180 is 811521.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3615 + ... + 3945.

It is an arithmetic number, because the mean of its divisors is an integer number (46480).

2^1251180 is an apocalyptic number.

1251180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1251180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2231040).

1251180 is an abundant number, since it is smaller than the sum of its proper divisors (3210900).

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

1251180 is a wasteful number, since it uses less digits than its factorization.

1251180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1251180 is about 1118.5615763113. The cubic root of 1251180 is about 107.7556202802.

It can be divided in two parts, 1251 and 180, that added together give a triangular number (1431 = T₅₃).

The spelling of 1251180 in words is "one million, two hundred fifty-one thousand, one hundred eighty".