2102401 has 4 divisors (see below), whose sum is σ = 2402752. Its totient is φ = 1802052.

The previous prime is 2102383. The next prime is 2102411. The reversal of 2102401 is 1042012.

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.

It is not a de Polignac number, because 2102401 - 2⁷ = 2102273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150165 + ... + 150178.

It is an arithmetic number, because the mean of its divisors is an integer number (600688).

2^2102401 is an apocalyptic number.

It is an amenable number.

2102401 is a deficient number, since it is larger than the sum of its proper divisors (300351).

2102401 is an equidigital number, since it uses as much as digits as its factorization.

2102401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300350.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2102401 is about 1449.9658616671. The cubic root of 2102401 is about 128.1067022055.

Adding to 2102401 its reverse (1042012), we get a palindrome (3144413).

The spelling of 2102401 in words is "two million, one hundred two thousand, four hundred one".