11507261 has 2 divisors, whose sum is σ = 11507262. Its totient is φ = 11507260.

The previous prime is 11507213. The next prime is 11507267. The reversal of 11507261 is 16270511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8231161 + 3276100 = 2869^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 11507261 - 2²² = 7312957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11507267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5753630 + 5753631.

It is an arithmetic number, because the mean of its divisors is an integer number (5753631).

Almost surely, 2^11507261 is an apocalyptic number.

It is an amenable number.

11507261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11507261 is an equidigital number, since it uses as much as digits as its factorization.

11507261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 11507261 is about 3392.2353986715. The cubic root of 11507261 is about 225.7653672129.

Adding to 11507261 its reverse (16270511), we get a palindrome (27777772).

The spelling of 11507261 in words is "eleven million, five hundred seven thousand, two hundred sixty-one".