11591953 has 2 divisors, whose sum is σ = 11591954. Its totient is φ = 11591952.

The previous prime is 11591947. The next prime is 11592043. The reversal of 11591953 is 35919511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10647169 + 944784 = 3263^2 + 972^2 .

It is an emirp because it is prime and its reverse (35919511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11591953 - 2¹⁷ = 11460881 is a prime.

It is not a weakly prime, because it can be changed into another prime (11591053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5795976 + 5795977.

It is an arithmetic number, because the mean of its divisors is an integer number (5795977).

Almost surely, 2^11591953 is an apocalyptic number.

It is an amenable number.

11591953 is a deficient number, since it is larger than the sum of its proper divisors (1).

11591953 is an equidigital number, since it uses as much as digits as its factorization.

11591953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6075, while the sum is 34.

The square root of 11591953 is about 3404.6957279616. The cubic root of 11591953 is about 226.3178822186.

It can be divided in two parts, 11591 and 953, that added together give a square (12544 = 112²).

The spelling of 11591953 in words is "eleven million, five hundred ninety-one thousand, nine hundred fifty-three".