11957275 has 12 divisors (see below), whose sum is σ = 16175304. Its totient is φ = 8696000.

The previous prime is 11957269. The next prime is 11957279. The reversal of 11957275 is 57275911.

It is not a de Polignac number, because 11957275 - 2⁷ = 11957147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11957279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21466 + ... + 22015.

It is an arithmetic number, because the mean of its divisors is an integer number (1347942).

Almost surely, 2^11957275 is an apocalyptic number.

11957275 is a deficient number, since it is larger than the sum of its proper divisors (4218029).

11957275 is a wasteful number, since it uses less digits than its factorization.

11957275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43502 (or 43497 counting only the distinct ones).

The product of its digits is 22050, while the sum is 37.

The square root of 11957275 is about 3457.9292936669. The cubic root of 11957275 is about 228.6708147591.

It can be divided in two parts, 11 and 957275, that multiplied together give a square (10530025 = 3245²).

The spelling of 11957275 in words is "eleven million, nine hundred fifty-seven thousand, two hundred seventy-five".