561196423 has 4 divisors (see below), whose sum is σ = 562299480. Its totient is φ = 560093368.

The previous prime is 561196417. The next prime is 561196453. The reversal of 561196423 is 324691165.

561196423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561196423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561196453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550765 + ... + 551782.

It is an arithmetic number, because the mean of its divisors is an integer number (140574870).

Almost surely, 2^561196423 is an apocalyptic number.

561196423 is a deficient number, since it is larger than the sum of its proper divisors (1103057).

561196423 is a wasteful number, since it uses less digits than its factorization.

561196423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103056.

The product of its digits is 38880, while the sum is 37.

The square root of 561196423 is about 23689.5846945446. The cubic root of 561196423 is about 824.8436424834.

The spelling of 561196423 in words is "five hundred sixty-one million, one hundred ninety-six thousand, four hundred twenty-three".