11147001 has 4 divisors (see below), whose sum is σ = 14862672. Its totient is φ = 7431332.

The previous prime is 11146997. The next prime is 11147009. The reversal of 11147001 is 10074111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10074111 = 3 ⋅3358037.

It is a cyclic number.

It is not a de Polignac number, because 11147001 - 2² = 11146997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11147009) 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 3 ways as a sum of consecutive naturals, for example, 1857831 + ... + 1857836.

It is an arithmetic number, because the mean of its divisors is an integer number (3715668).

Almost surely, 2^11147001 is an apocalyptic number.

It is an amenable number.

11147001 is a deficient number, since it is larger than the sum of its proper divisors (3715671).

11147001 is an equidigital number, since it uses as much as digits as its factorization.

11147001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715670.

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 11147001 is about 3338.7124763897. The cubic root of 11147001 is about 223.3843172135.

The spelling of 11147001 in words is "eleven million, one hundred forty-seven thousand, one".