1172261 has 2 divisors, whose sum is σ = 1172262. Its totient is φ = 1172260.

The previous prime is 1172257. The next prime is 1172273. The reversal of 1172261 is 1622711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 940900 + 231361 = 970^2 + 481^2 .

It is an emirp because it is prime and its reverse (1622711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1172261 - 2² = 1172257 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1172461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586130 + 586131.

It is an arithmetic number, because the mean of its divisors is an integer number (586131).

2^1172261 is an apocalyptic number.

It is an amenable number.

1172261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172261 is an equidigital number, since it uses as much as digits as its factorization.

1172261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168, while the sum is 20.

The square root of 1172261 is about 1082.7100258149. The cubic root of 1172261 is about 105.4406575368.

Adding to 1172261 its reverse (1622711), we get a palindrome (2794972).

The spelling of 1172261 in words is "one million, one hundred seventy-two thousand, two hundred sixty-one".