403104561 has 24 divisors (see below), whose sum is σ = 575097120. Its totient is φ = 250285056.

The previous prime is 403104521. The next prime is 403104607. The reversal of 403104561 is 165401304.

It is not a de Polignac number, because 403104561 - 2²² = 398910257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (403104521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 650910 + ... + 651528.

It is an arithmetic number, because the mean of its divisors is an integer number (23962380).

Almost surely, 2^403104561 is an apocalyptic number.

It is an amenable number.

403104561 is a deficient number, since it is larger than the sum of its proper divisors (171992559).

403104561 is a wasteful number, since it uses less digits than its factorization.

403104561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 403104561 is about 20077.4640081859. The cubic root of 403104561 is about 738.7076059971.

Adding to 403104561 its reverse (165401304), we get a palindrome (568505865).

The spelling of 403104561 in words is "four hundred three million, one hundred four thousand, five hundred sixty-one".