561000106 has 4 divisors (see below), whose sum is σ = 841500162. Its totient is φ = 280500052.

The previous prime is 561000101. The next prime is 561000127. The reversal of 561000106 is 601000165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601000165 = 5 ⋅120200033.

It can be written as a sum of positive squares in only one way, i.e., 558140625 + 2859481 = 23625^2 + 1691^2 .

It is a super-2 number, since 2×561000106² = 629442237864022472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (561000101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140250025 + ... + 140250028.

Almost surely, 2^561000106 is an apocalyptic number.

561000106 is a deficient number, since it is larger than the sum of its proper divisors (280500056).

561000106 is a wasteful number, since it uses less digits than its factorization.

561000106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280500055.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 561000106 is about 23685.4408023157. The cubic root of 561000106 is about 824.7474493571.

The spelling of 561000106 in words is "five hundred sixty-one million, one hundred six", and thus it is an aban number.