561142803 has 8 divisors (see below), whose sum is σ = 805743568. Its totient is φ = 345318624.

The previous prime is 561142801. The next prime is 561142847. The reversal of 561142803 is 308241165.

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

It is not a de Polignac number, because 561142803 - 2¹ = 561142801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561142801) 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 7 ways as a sum of consecutive naturals, for example, 7194100 + ... + 7194177.

It is an arithmetic number, because the mean of its divisors is an integer number (100717946).

Almost surely, 2^561142803 is an apocalyptic number.

561142803 is a deficient number, since it is larger than the sum of its proper divisors (244600765).

561142803 is a wasteful number, since it uses less digits than its factorization.

561142803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14388293.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 561142803 is about 23688.4529465307. The cubic root of 561142803 is about 824.8173715125.

Adding to 561142803 its reverse (308241165), we get a palindrome (869383968).

The spelling of 561142803 in words is "five hundred sixty-one million, one hundred forty-two thousand, eight hundred three".