1180145 has 8 divisors (see below), whose sum is σ = 1423656. Its totient is φ = 939136.

The previous prime is 1180141. The next prime is 1180159. The reversal of 1180145 is 5410811.

It can be written as a sum of positive squares in 4 ways, for example, as 50176 + 1129969 = 224^2 + 1063^2 .

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 1180145 - 2² = 1180141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1180141) 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, 659 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (177957).

2^1180145 is an apocalyptic number.

It is an amenable number.

1180145 is a deficient number, since it is larger than the sum of its proper divisors (243511).

1180145 is a wasteful number, since it uses less digits than its factorization.

1180145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 1180145 is about 1086.3447887296. The cubic root of 1180145 is about 105.6765087289.

Adding to 1180145 its reverse (5410811), we get a palindrome (6590956).

The spelling of 1180145 in words is "one million, one hundred eighty thousand, one hundred forty-five".