561206031 has 8 divisors (see below), whose sum is σ = 750681984. Its totient is φ = 372933720.

The previous prime is 561205993. The next prime is 561206033. The reversal of 561206031 is 130602165.

561206031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 561206031 - 2¹³ = 561197839 is a prime.

It is a super-2 number, since 2×561206031² = 629904418461545922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561205992 and 561206010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561206033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299821 + ... + 301686.

It is an arithmetic number, because the mean of its divisors is an integer number (93835248).

Almost surely, 2^561206031 is an apocalyptic number.

561206031 is a deficient number, since it is larger than the sum of its proper divisors (189475953).

561206031 is a wasteful number, since it uses less digits than its factorization.

561206031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601821.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 561206031 is about 23689.7874832173. The cubic root of 561206031 is about 824.8483497197.

Adding to 561206031 its reverse (130602165), we get a palindrome (691808196).

The spelling of 561206031 in words is "five hundred sixty-one million, two hundred six thousand, thirty-one".