404118137 has 2 divisors, whose sum is σ = 404118138. Its totient is φ = 404118136.

The previous prime is 404118109. The next prime is 404118149. The reversal of 404118137 is 731811404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 326308096 + 77810041 = 18064^2 + 8821^2 .

It is a cyclic number.

It is not a de Polignac number, because 404118137 - 2⁸ = 404117881 is a prime.

It is a super-2 number, since 2×404118137² = 326622937304701538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (404118937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202059068 + 202059069.

It is an arithmetic number, because the mean of its divisors is an integer number (202059069).

Almost surely, 2^404118137 is an apocalyptic number.

It is an amenable number.

404118137 is a deficient number, since it is larger than the sum of its proper divisors (1).

404118137 is an equidigital number, since it uses as much as digits as its factorization.

404118137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 404118137 is about 20102.6897951493. The cubic root of 404118137 is about 739.3262293032.

The spelling of 404118137 in words is "four hundred four million, one hundred eighteen thousand, one hundred thirty-seven".