415843561 has 4 divisors (see below), whose sum is σ = 475249792. Its totient is φ = 356437332.

The previous prime is 415843553. The next prime is 415843573. The reversal of 415843561 is 165348514.

It is a happy number.

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 415843561 - 2³ = 415843553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 415843561.

It is not an unprimeable number, because it can be changed into a prime (415843501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29703105 + ... + 29703118.

It is an arithmetic number, because the mean of its divisors is an integer number (118812448).

Almost surely, 2^415843561 is an apocalyptic number.

It is an amenable number.

415843561 is a deficient number, since it is larger than the sum of its proper divisors (59406231).

415843561 is an equidigital number, since it uses as much as digits as its factorization.

415843561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59406230.

The product of its digits is 57600, while the sum is 37.

The square root of 415843561 is about 20392.2426672497. The cubic root of 415843561 is about 746.4086442605.

The spelling of 415843561 in words is "four hundred fifteen million, eight hundred forty-three thousand, five hundred sixty-one".