13912001 has 4 divisors (see below), whose sum is σ = 14730372. Its totient is φ = 13093632.

The previous prime is 13911991. The next prime is 13912007. The reversal of 13912001 is 10021931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5640625 + 8271376 = 2375^2 + 2876^2 .

It is a cyclic number.

It is not a de Polignac number, because 13912001 - 2¹⁰ = 13910977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 818353 = 13912001 / (1 + 3 + 9 + 1 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13912007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409160 + ... + 409193.

It is an arithmetic number, because the mean of its divisors is an integer number (3682593).

Almost surely, 2^13912001 is an apocalyptic number.

It is an amenable number.

13912001 is a deficient number, since it is larger than the sum of its proper divisors (818371).

13912001 is an equidigital number, since it uses as much as digits as its factorization.

13912001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818370.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 13912001 is about 3729.8794886698. The cubic root of 13912001 is about 240.5081882232.

Adding to 13912001 its reverse (10021931), we get a palindrome (23933932).

The spelling of 13912001 in words is "thirteen million, nine hundred twelve thousand, one".