1180321 has 4 divisors (see below), whose sum is σ = 1182852. Its totient is φ = 1177792.

The previous prime is 1180313. The next prime is 1180351. The reversal of 1180321 is 1230811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1230811 = 727 ⋅1693.

It can be written as a sum of positive squares in 2 ways, for example, as 474721 + 705600 = 689^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1180321 - 2³ = 1180313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1180295 and 1180304.

It is not an unprimeable number, because it can be changed into a prime (1180351) 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, 340 + ... + 1573.

It is an arithmetic number, because the mean of its divisors is an integer number (295713).

2^1180321 is an apocalyptic number.

It is an amenable number.

1180321 is a deficient number, since it is larger than the sum of its proper divisors (2531).

1180321 is an equidigital number, since it uses as much as digits as its factorization.

1180321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1180321 is about 1086.4257912992. The cubic root of 1180321 is about 105.6817617955.

The spelling of 1180321 in words is "one million, one hundred eighty thousand, three hundred twenty-one".