406165101 has 4 divisors (see below), whose sum is σ = 541553472. Its totient is φ = 270776732.

The previous prime is 406165099. The next prime is 406165127. The reversal of 406165101 is 101561604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 406165101 - 2¹ = 406165099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406165301) 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, 67694181 + ... + 67694186.

It is an arithmetic number, because the mean of its divisors is an integer number (135388368).

Almost surely, 2^406165101 is an apocalyptic number.

It is an amenable number.

406165101 is a deficient number, since it is larger than the sum of its proper divisors (135388371).

406165101 is a wasteful number, since it uses less digits than its factorization.

406165101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135388370.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 406165101 is about 20153.5381757150. The cubic root of 406165101 is about 740.5724211067.

The spelling of 406165101 in words is "four hundred six million, one hundred sixty-five thousand, one hundred one".