8105040401 has 2 divisors, whose sum is σ = 8105040402. Its totient is φ = 8105040400.

The previous prime is 8105040397. The next prime is 8105040407. The reversal of 8105040401 is 1040405018.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8082010000 + 23030401 = 89900^2 + 4799^2 .

It is a cyclic number.

It is not a de Polignac number, because 8105040401 - 2² = 8105040397 is a prime.

It is not a weakly prime, because it can be changed into another prime (8105040407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4052520200 + 4052520201.

It is an arithmetic number, because the mean of its divisors is an integer number (4052520201).

Almost surely, 2^8105040401 is an apocalyptic number.

It is an amenable number.

8105040401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8105040401 is an equidigital number, since it uses as much as digits as its factorization.

8105040401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 8105040401 is about 90027.9978728840. The cubic root of 8105040401 is about 2008.7153330688.

Adding to 8105040401 its reverse (1040405018), we get a palindrome (9145445419).

The spelling of 8105040401 in words is "eight billion, one hundred five million, forty thousand, four hundred one".