11187001 has 12 divisors (see below), whose sum is σ = 13218816. Its totient is φ = 9273960.

The previous prime is 11186983. The next prime is 11187019. The reversal of 11187001 is 10078111.

It is an interprime number because it is at equal distance from previous prime (11186983) and next prime (11187019).

It is not a de Polignac number, because 11187001 - 2¹⁵ = 11154233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11187001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11187041) 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 in 11 ways as a sum of consecutive naturals, for example, 5896 + ... + 7558.

It is an arithmetic number, because the mean of its divisors is an integer number (1101568).

Almost surely, 2^11187001 is an apocalyptic number.

It is an amenable number.

11187001 is a deficient number, since it is larger than the sum of its proper divisors (2031815).

11187001 is an equidigital number, since it uses as much as digits as its factorization.

11187001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732 (or 1701 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 19.

The square root of 11187001 is about 3344.6974452109. The cubic root of 11187001 is about 223.6511963504.

The spelling of 11187001 in words is "eleven million, one hundred eighty-seven thousand, one".