11491633 has 2 divisors, whose sum is σ = 11491634. Its totient is φ = 11491632.

The previous prime is 11491583. The next prime is 11491661. The reversal of 11491633 is 33619411.

It is an a-pointer prime, because the next prime (11491661) can be obtained adding 11491633 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9809424 + 1682209 = 3132^2 + 1297^2 .

It is a cyclic number.

It is not a de Polignac number, because 11491633 - 2¹³ = 11483441 is a prime.

It is not a weakly prime, because it can be changed into another prime (11491033) 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, 5745816 + 5745817.

It is an arithmetic number, because the mean of its divisors is an integer number (5745817).

Almost surely, 2^11491633 is an apocalyptic number.

It is an amenable number.

11491633 is a deficient number, since it is larger than the sum of its proper divisors (1).

11491633 is an equidigital number, since it uses as much as digits as its factorization.

11491633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 11491633 is about 3389.9311202442. The cubic root of 11491633 is about 225.6631170015.

The spelling of 11491633 in words is "eleven million, four hundred ninety-one thousand, six hundred thirty-three".