561762141 has 4 divisors (see below), whose sum is σ = 749016192. Its totient is φ = 374508092.

The previous prime is 561762139. The next prime is 561762163. The reversal of 561762141 is 141267165.

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 561762141 - 2¹ = 561762139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561762181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93627021 + ... + 93627026.

It is an arithmetic number, because the mean of its divisors is an integer number (187254048).

Almost surely, 2^561762141 is an apocalyptic number.

It is an amenable number.

561762141 is a deficient number, since it is larger than the sum of its proper divisors (187254051).

561762141 is a wasteful number, since it uses less digits than its factorization.

561762141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187254050.

The product of its digits is 10080, while the sum is 33.

The square root of 561762141 is about 23701.5219131599. The cubic root of 561762141 is about 825.1207125479.

The spelling of 561762141 in words is "five hundred sixty-one million, seven hundred sixty-two thousand, one hundred forty-one".