414521561 has 4 divisors (see below), whose sum is σ = 415774224. Its totient is φ = 413268900.

The previous prime is 414521509. The next prime is 414521573. The reversal of 414521561 is 165125414.

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 414521561 - 2¹⁴ = 414505177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (414521581) 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, 625835 + ... + 626496.

It is an arithmetic number, because the mean of its divisors is an integer number (103943556).

Almost surely, 2^414521561 is an apocalyptic number.

It is an amenable number.

414521561 is a deficient number, since it is larger than the sum of its proper divisors (1252663).

414521561 is a wasteful number, since it uses less digits than its factorization.

414521561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252662.

The product of its digits is 4800, while the sum is 29.

The square root of 414521561 is about 20359.8025776283. The cubic root of 414521561 is about 745.6168403020.

Adding to 414521561 its reverse (165125414), we get a palindrome (579646975).

The spelling of 414521561 in words is "four hundred fourteen million, five hundred twenty-one thousand, five hundred sixty-one".