406105169 has 2 divisors, whose sum is σ = 406105170. Its totient is φ = 406105168.

The previous prime is 406105111. The next prime is 406105211. The reversal of 406105169 is 961501604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374035600 + 32069569 = 19340^2 + 5663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406105169 is a prime.

It is a super-2 number, since 2×406105169² = 329842816577037122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (400105169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203052584 + 203052585.

It is an arithmetic number, because the mean of its divisors is an integer number (203052585).

Almost surely, 2^406105169 is an apocalyptic number.

It is an amenable number.

406105169 is a deficient number, since it is larger than the sum of its proper divisors (1).

406105169 is an equidigital number, since it uses as much as digits as its factorization.

406105169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 406105169 is about 20152.0512355442. The cubic root of 406105169 is about 740.5359940729.

The spelling of 406105169 in words is "four hundred six million, one hundred five thousand, one hundred sixty-nine".