11400001 has 4 divisors (see below), whose sum is σ = 11422404. Its totient is φ = 11377600.

The previous prime is 11399989. The next prime is 11400017. The reversal of 11400001 is 10000411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10000411 = 53 ⋅188687.

It can be written as a sum of positive squares in 2 ways, for example, as 1166400 + 10233601 = 1080^2 + 3199^2 .

It is a cyclic number.

It is not a de Polignac number, because 11400001 - 2⁷ = 11399873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11400071) 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, 10420 + ... + 11461.

It is an arithmetic number, because the mean of its divisors is an integer number (2855601).

Almost surely, 2^11400001 is an apocalyptic number.

It is an amenable number.

11400001 is a deficient number, since it is larger than the sum of its proper divisors (22403).

11400001 is an equidigital number, since it uses as much as digits as its factorization.

11400001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22402.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 11400001 is about 3376.3887513140. The cubic root of 11400001 is about 225.0617180485.

Adding to 11400001 its reverse (10000411), we get a palindrome (21400412).

The spelling of 11400001 in words is "eleven million, four hundred thousand, one".