11630491 has 2 divisors, whose sum is σ = 11630492. Its totient is φ = 11630490.

The previous prime is 11630477. The next prime is 11630497. The reversal of 11630491 is 19403611.

It is a strong prime.

It is an emirp because it is prime and its reverse (19403611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11630491 is a prime.

It is not a weakly prime, because it can be changed into another prime (11630497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5815245 + 5815246.

It is an arithmetic number, because the mean of its divisors is an integer number (5815246).

Almost surely, 2^11630491 is an apocalyptic number.

11630491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11630491 is an equidigital number, since it uses as much as digits as its factorization.

11630491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 11630491 is about 3410.3505684900. The cubic root of 11630491 is about 226.5684063240.

It can be divided in two parts, 11630 and 491, that added together give a palindrome (12121).

The spelling of 11630491 in words is "eleven million, six hundred thirty thousand, four hundred ninety-one".