413121523 has 4 divisors (see below), whose sum is σ = 418940208. Its totient is φ = 407302840.

The previous prime is 413121521. The next prime is 413121551. The reversal of 413121523 is 325121314.

It is a happy number.

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 413121523 - 2¹ = 413121521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 413121494 and 413121503.

It is not an unprimeable number, because it can be changed into a prime (413121521) 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, 2909236 + ... + 2909377.

It is an arithmetic number, because the mean of its divisors is an integer number (104735052).

Almost surely, 2^413121523 is an apocalyptic number.

413121523 is a deficient number, since it is larger than the sum of its proper divisors (5818685).

413121523 is an equidigital number, since it uses as much as digits as its factorization.

413121523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5818684.

The product of its digits is 720, while the sum is 22.

The square root of 413121523 is about 20325.3910909483. The cubic root of 413121523 is about 744.7764583134.

Adding to 413121523 its reverse (325121314), we get a palindrome (738242837).

The spelling of 413121523 in words is "four hundred thirteen million, one hundred twenty-one thousand, five hundred twenty-three".