406861159 has 4 divisors (see below), whose sum is σ = 407751904. Its totient is φ = 405970416.

The previous prime is 406861157. The next prime is 406861171. The reversal of 406861159 is 951168604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406861159 - 2¹ = 406861157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406861157) 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, 444687 + ... + 445600.

It is an arithmetic number, because the mean of its divisors is an integer number (101937976).

Almost surely, 2^406861159 is an apocalyptic number.

406861159 is a deficient number, since it is larger than the sum of its proper divisors (890745).

406861159 is an equidigital number, since it uses as much as digits as its factorization.

406861159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890744.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 406861159 is about 20170.7996618875. The cubic root of 406861159 is about 740.9952271458.

The spelling of 406861159 in words is "four hundred six million, eight hundred sixty-one thousand, one hundred fifty-nine".