11831537 has 2 divisors, whose sum is σ = 11831538. Its totient is φ = 11831536.

The previous prime is 11831531. The next prime is 11831539. The reversal of 11831537 is 73513811.

11831537 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10699441 + 1132096 = 3271^2 + 1064^2 .

It is a cyclic number.

It is not a de Polignac number, because 11831537 - 2¹⁰ = 11830513 is a prime.

Together with 11831539, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11831531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5915768 + 5915769.

It is an arithmetic number, because the mean of its divisors is an integer number (5915769).

Almost surely, 2^11831537 is an apocalyptic number.

It is an amenable number.

11831537 is a deficient number, since it is larger than the sum of its proper divisors (1).

11831537 is an equidigital number, since it uses as much as digits as its factorization.

11831537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 29.

The square root of 11831537 is about 3439.7001322790. The cubic root of 11831537 is about 227.8664512354.

The spelling of 11831537 in words is "eleven million, eight hundred thirty-one thousand, five hundred thirty-seven".