11630191 has 4 divisors (see below), whose sum is σ = 11737000. Its totient is φ = 11523384.

The previous prime is 11630153. The next prime is 11630219. The reversal of 11630191 is 19103611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11630191 - 2⁹ = 11629679 is a prime.

It is a super-2 number, since 2×11630191² = 270522685392962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11630491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53241 + ... + 53458.

It is an arithmetic number, because the mean of its divisors is an integer number (2934250).

Almost surely, 2^11630191 is an apocalyptic number.

11630191 is a deficient number, since it is larger than the sum of its proper divisors (106809).

11630191 is a wasteful number, since it uses less digits than its factorization.

11630191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106808.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 11630191 is about 3410.3065844584. The cubic root of 11630191 is about 226.5664582519.

The spelling of 11630191 in words is "eleven million, six hundred thirty thousand, one hundred ninety-one".