11162001 has 4 divisors (see below), whose sum is σ = 14882672. Its totient is φ = 7441332.

The previous prime is 11161993. The next prime is 11162009. The reversal of 11162001 is 10026111.

It is a happy number.

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: 10026111 = 3 ⋅3342037.

It is an interprime number because it is at equal distance from previous prime (11161993) and next prime (11162009).

It is not a de Polignac number, because 11162001 - 2³ = 11161993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11162009) 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, 1860331 + ... + 1860336.

It is an arithmetic number, because the mean of its divisors is an integer number (3720668).

Almost surely, 2^11162001 is an apocalyptic number.

It is an amenable number.

11162001 is a deficient number, since it is larger than the sum of its proper divisors (3720671).

11162001 is an equidigital number, since it uses as much as digits as its factorization.

11162001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720670.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 11162001 is about 3340.9580961155. The cubic root of 11162001 is about 223.4844715925.

Adding to 11162001 its reverse (10026111), we get a palindrome (21188112).

The spelling of 11162001 in words is "eleven million, one hundred sixty-two thousand, one".