561050131 has 4 divisors (see below), whose sum is σ = 561186064. Its totient is φ = 560914200.

The previous prime is 561050093. The next prime is 561050159. The reversal of 561050131 is 131050165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131050165 = 5 ⋅26210033.

It is a cyclic number.

It is not a de Polignac number, because 561050131 - 2¹¹ = 561048083 is a prime.

It is a super-2 number, since 2×561050131² = 629554498990234322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561053131) 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 in 3 ways as a sum of consecutive naturals, for example, 61575 + ... + 70096.

It is an arithmetic number, because the mean of its divisors is an integer number (140296516).

Almost surely, 2^561050131 is an apocalyptic number.

561050131 is a deficient number, since it is larger than the sum of its proper divisors (135933).

561050131 is a wasteful number, since it uses less digits than its factorization.

561050131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135932.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 561050131 is about 23686.4968072529. The cubic root of 561050131 is about 824.7719631760.

The spelling of 561050131 in words is "five hundred sixty-one million, fifty thousand, one hundred thirty-one".