11190001 has 4 divisors (see below), whose sum is σ = 11196900. Its totient is φ = 11183104.

The previous prime is 11189989. The next prime is 11190013. The reversal of 11190001 is 10009111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (11189989) and next prime (11190013).

It can be written as a sum of positive squares in 2 ways, for example, as 8381025 + 2808976 = 2895^2 + 1676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11190001 is a prime.

It is a super-2 number, since 2×11190001² = 250432244760002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11190041) 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, 465 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (2799225).

Almost surely, 2^11190001 is an apocalyptic number.

It is an amenable number.

11190001 is a deficient number, since it is larger than the sum of its proper divisors (6899).

11190001 is an equidigital number, since it uses as much as digits as its factorization.

11190001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6898.

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 11190001 is about 3345.1458862059. The cubic root of 11190001 is about 223.6711866237.

Adding to 11190001 its reverse (10009111), we get a palindrome (21199112).

The spelling of 11190001 in words is "eleven million, one hundred ninety thousand, one".