561142033 has 2 divisors, whose sum is σ = 561142034. Its totient is φ = 561142032.

The previous prime is 561142013. The next prime is 561142061. The reversal of 561142033 is 330241165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416853889 + 144288144 = 20417^2 + 12012^2 .

It is a cyclic number.

It is not a de Polignac number, because 561142033 - 2²⁵ = 527587601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561141989 and 561142007.

It is not a weakly prime, because it can be changed into another prime (561142013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280571016 + 280571017.

It is an arithmetic number, because the mean of its divisors is an integer number (280571017).

Almost surely, 2^561142033 is an apocalyptic number.

It is an amenable number.

561142033 is a deficient number, since it is larger than the sum of its proper divisors (1).

561142033 is an equidigital number, since it uses as much as digits as its factorization.

561142033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 561142033 is about 23688.4366938808. The cubic root of 561142033 is about 824.8169942409.

Adding to 561142033 its reverse (330241165), we get a palindrome (891383198).

The spelling of 561142033 in words is "five hundred sixty-one million, one hundred forty-two thousand, thirty-three".