561168337 has 4 divisors (see below), whose sum is σ = 562731840. Its totient is φ = 559604836.

The previous prime is 561168277. The next prime is 561168371. The reversal of 561168337 is 733861165.

It is a happy number.

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 561168337 - 2²³ = 552779729 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 561168337.

It is not an unprimeable number, because it can be changed into a prime (561168037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781213 + ... + 781930.

It is an arithmetic number, because the mean of its divisors is an integer number (140682960).

Almost surely, 2^561168337 is an apocalyptic number.

It is an amenable number.

561168337 is a deficient number, since it is larger than the sum of its proper divisors (1563503).

561168337 is a wasteful number, since it uses less digits than its factorization.

561168337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563502.

The product of its digits is 90720, while the sum is 40.

The square root of 561168337 is about 23688.9918949710. The cubic root of 561168337 is about 824.8298820340.

The spelling of 561168337 in words is "five hundred sixty-one million, one hundred sixty-eight thousand, three hundred thirty-seven".