8102401 has 4 divisors (see below), whose sum is σ = 8108100. Its totient is φ = 8096704.

The previous prime is 8102399. The next prime is 8102407. The reversal of 8102401 is 1042018.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1042018 = 2 ⋅521009.

It can be written as a sum of positive squares in 2 ways, for example, as 3591025 + 4511376 = 1895^2 + 2124^2 .

It is a cyclic number.

It is not a de Polignac number, because 8102401 - 2¹ = 8102399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8102407) 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, 1245 + ... + 4213.

It is an arithmetic number, because the mean of its divisors is an integer number (2027025).

Almost surely, 2^8102401 is an apocalyptic number.

It is an amenable number.

8102401 is a deficient number, since it is larger than the sum of its proper divisors (5699).

8102401 is a wasteful number, since it uses less digits than its factorization.

8102401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5698.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 8102401 is about 2846.4716756012. The cubic root of 8102401 is about 200.8497263793.

Adding to 8102401 its reverse (1042018), we get a palindrome (9144419).

The spelling of 8102401 in words is "eight million, one hundred two thousand, four hundred one".