1180621 has 8 divisors (see below), whose sum is σ = 1280664. Its totient is φ = 1081920.

The previous prime is 1180591. The next prime is 1180631. The reversal of 1180621 is 1260811.

It can be written as a sum of positive squares in 4 ways, for example, as 202500 + 978121 = 450^2 + 989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1180621 - 2⁷ = 1180493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180631) 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, 2331 + ... + 2791.

It is an arithmetic number, because the mean of its divisors is an integer number (160083).

2^1180621 is an apocalyptic number.

It is an amenable number.

1180621 is a deficient number, since it is larger than the sum of its proper divisors (100043).

1180621 is a wasteful number, since it uses less digits than its factorization.

1180621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 1180621 is about 1086.5638499416. The cubic root of 1180621 is about 105.6907146829.

The spelling of 1180621 in words is "one million, one hundred eighty thousand, six hundred twenty-one".