11275997 has 2 divisors, whose sum is σ = 11275998. Its totient is φ = 11275996.

The previous prime is 11275963. The next prime is 11276011. The reversal of 11275997 is 79957211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6497401 + 4778596 = 2549^2 + 2186^2 .

It is a cyclic number.

It is not a de Polignac number, because 11275997 - 2¹⁶ = 11210461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11275597) 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 as a sum of consecutive naturals, namely, 5637998 + 5637999.

It is an arithmetic number, because the mean of its divisors is an integer number (5637999).

Almost surely, 2^11275997 is an apocalyptic number.

It is an amenable number.

11275997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11275997 is an equidigital number, since it uses as much as digits as its factorization.

11275997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39690, while the sum is 41.

The square root of 11275997 is about 3357.9751339163. The cubic root of 11275997 is about 224.2427017042.

The spelling of 11275997 in words is "eleven million, two hundred seventy-five thousand, nine hundred ninety-seven".