561601334 has 16 divisors (see below), whose sum is σ = 963339936. Its totient is φ = 240537600.

The previous prime is 561601279. The next prime is 561601343. The reversal of 561601334 is 433106165.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 561601297 and 561601306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12854 + ... + 35894.

It is an arithmetic number, because the mean of its divisors is an integer number (60208746).

Almost surely, 2^561601334 is an apocalyptic number.

561601334 is a deficient number, since it is larger than the sum of its proper divisors (401738602).

561601334 is a wasteful number, since it uses less digits than its factorization.

561601334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24791.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 561601334 is about 23698.1293354560. The cubic root of 561601334 is about 825.0419734996.

Adding to 561601334 its reverse (433106165), we get a palindrome (994707499).

The spelling of 561601334 in words is "five hundred sixty-one million, six hundred one thousand, three hundred thirty-four".