11181953 has 2 divisors, whose sum is σ = 11181954. Its totient is φ = 11181952.

The previous prime is 11181949. The next prime is 11181959. The reversal of 11181953 is 35918111.

11181953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6615184 + 4566769 = 2572^2 + 2137^2 .

It is a cyclic number.

It is not a de Polignac number, because 11181953 - 2² = 11181949 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11181959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5590976 + 5590977.

It is an arithmetic number, because the mean of its divisors is an integer number (5590977).

Almost surely, 2^11181953 is an apocalyptic number.

It is an amenable number.

11181953 is a deficient number, since it is larger than the sum of its proper divisors (1).

11181953 is an equidigital number, since it uses as much as digits as its factorization.

11181953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 29.

The square root of 11181953 is about 3343.9427327632. The cubic root of 11181953 is about 223.6175513162.

The spelling of 11181953 in words is "eleven million, one hundred eighty-one thousand, nine hundred fifty-three".