1183261 has 2 divisors, whose sum is σ = 1183262. Its totient is φ = 1183260.

The previous prime is 1183241. The next prime is 1183267. The reversal of 1183261 is 1623811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 962361 + 220900 = 981^2 + 470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1183261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1183267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 591630 + 591631.

It is an arithmetic number, because the mean of its divisors is an integer number (591631).

2^1183261 is an apocalyptic number.

It is an amenable number.

1183261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1183261 is an equidigital number, since it uses as much as digits as its factorization.

1183261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 22.

The square root of 1183261 is about 1087.7780104415. The cubic root of 1183261 is about 105.7694347714.

It can be divided in two parts, 1183 and 261, that added together give a square (1444 = 38²).

The spelling of 1183261 in words is "one million, one hundred eighty-three thousand, two hundred sixty-one".