1180261 has 4 divisors (see below), whose sum is σ = 1242400. Its totient is φ = 1118124.

The previous prime is 1180253. The next prime is 1180279. The reversal of 1180261 is 1620811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1180261 - 2³ = 1180253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 62119 = 1180261 / (1 + 1 + 8 + 0 + 2 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31041 + ... + 31078.

It is an arithmetic number, because the mean of its divisors is an integer number (310600).

2^1180261 is an apocalyptic number.

It is an amenable number.

1180261 is a deficient number, since it is larger than the sum of its proper divisors (62139).

1180261 is an equidigital number, since it uses as much as digits as its factorization.

1180261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62138.

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

The square root of 1180261 is about 1086.3981774653. The cubic root of 1180261 is about 105.6799710360.

It can be divided in two parts, 1180 and 261, that added together give a palindrome (1441).

The spelling of 1180261 in words is "one million, one hundred eighty thousand, two hundred sixty-one".