2154401 has 4 divisors (see below), whose sum is σ = 2158404. Its totient is φ = 2150400.

The previous prime is 2154389. The next prime is 2154413. The reversal of 2154401 is 1044512.

2154401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (2154389) and next prime (2154413).

It can be written as a sum of positive squares in 2 ways, for example, as 1795600 + 358801 = 1340^2 + 599^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154401 - 2¹⁰ = 2153377 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 2154401.

It is not an unprimeable number, because it can be changed into a prime (2154491) 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, 1040 + ... + 2321.

It is an arithmetic number, because the mean of its divisors is an integer number (539601).

2^2154401 is an apocalyptic number.

It is an amenable number.

2154401 is a deficient number, since it is larger than the sum of its proper divisors (4003).

2154401 is an equidigital number, since it uses as much as digits as its factorization.

2154401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2154401 is about 1467.7877912014. The cubic root of 2154401 is about 129.1542932765.

Adding to 2154401 its reverse (1044512), we get a palindrome (3198913).

The spelling of 2154401 in words is "two million, one hundred fifty-four thousand, four hundred one".