11631277 has 6 divisors (see below), whose sum is σ = 13530318. Its totient is φ = 9969624.

The previous prime is 11631271. The next prime is 11631289. The reversal of 11631277 is 77213611.

11631277 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5900041 + 5731236 = 2429^2 + 2394^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11631277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11631271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118638 + ... + 118735.

It is an arithmetic number, because the mean of its divisors is an integer number (2255053).

Almost surely, 2^11631277 is an apocalyptic number.

It is an amenable number.

11631277 is a deficient number, since it is larger than the sum of its proper divisors (1899041).

11631277 is an equidigital number, since it uses as much as digits as its factorization.

11631277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237387 (or 237380 counting only the distinct ones).

The product of its digits is 1764, while the sum is 28.

The square root of 11631277 is about 3410.4658039629. The cubic root of 11631277 is about 226.5735101142.

Adding to 11631277 its reverse (77213611), we get a palindrome (88844888).

The spelling of 11631277 in words is "eleven million, six hundred thirty-one thousand, two hundred seventy-seven".