561435113 has 4 divisors (see below), whose sum is σ = 562014288. Its totient is φ = 560855940.

The previous prime is 561435109. The next prime is 561435131. The reversal of 561435113 is 311534165.

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 561435113 - 2² = 561435109 is a prime.

It is a super-2 number, since 2×561435113² = 630418772218645538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561435613) 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, 288131 + ... + 290072.

It is an arithmetic number, because the mean of its divisors is an integer number (140503572).

Almost surely, 2^561435113 is an apocalyptic number.

It is an amenable number.

561435113 is a deficient number, since it is larger than the sum of its proper divisors (579175).

561435113 is an equidigital number, since it uses as much as digits as its factorization.

561435113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579174.

The product of its digits is 5400, while the sum is 29.

The square root of 561435113 is about 23694.6220269495. The cubic root of 561435113 is about 824.9605676898.

Adding to 561435113 its reverse (311534165), we get a palindrome (872969278).

The spelling of 561435113 in words is "five hundred sixty-one million, four hundred thirty-five thousand, one hundred thirteen".