561415103 has 2 divisors, whose sum is σ = 561415104. Its totient is φ = 561415102.

The previous prime is 561415093. The next prime is 561415109. The reversal of 561415103 is 301514165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561415103 - 2⁶ = 561415039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561415109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280707551 + 280707552.

It is an arithmetic number, because the mean of its divisors is an integer number (280707552).

Almost surely, 2^561415103 is an apocalyptic number.

561415103 is a deficient number, since it is larger than the sum of its proper divisors (1).

561415103 is an equidigital number, since it uses as much as digits as its factorization.

561415103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 561415103 is about 23694.1997754725. The cubic root of 561415103 is about 824.9507668202.

Adding to 561415103 its reverse (301514165), we get a palindrome (862929268).

The spelling of 561415103 in words is "five hundred sixty-one million, four hundred fifteen thousand, one hundred three".