404018101 has 2 divisors, whose sum is σ = 404018102. Its totient is φ = 404018100.

The previous prime is 404018093. The next prime is 404018113. The reversal of 404018101 is 101810404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392634225 + 11383876 = 19815^2 + 3374^2 .

It is a cyclic number.

It is not a de Polignac number, because 404018101 - 2³ = 404018093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404018171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202009050 + 202009051.

It is an arithmetic number, because the mean of its divisors is an integer number (202009051).

Almost surely, 2^404018101 is an apocalyptic number.

It is an amenable number.

404018101 is a deficient number, since it is larger than the sum of its proper divisors (1).

404018101 is an equidigital number, since it uses as much as digits as its factorization.

404018101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 404018101 is about 20100.2015164028. The cubic root of 404018101 is about 739.2652196335.

Adding to 404018101 its reverse (101810404), we get a palindrome (505828505).

The spelling of 404018101 in words is "four hundred four million, eighteen thousand, one hundred one".