1561334034 has 32 divisors (see below), whose sum is σ = 3471358464. Its totient is φ = 464912640.

The previous prime is 1561334017. The next prime is 1561334039. The reversal of 1561334034 is 4304331651.

It is a junction number, because it is equal to n+sod(n) for n = 1561333992 and 1561334010.

It is not an unprimeable number, because it can be changed into a prime (1561334039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320439 + ... + 325274.

It is an arithmetic number, because the mean of its divisors is an integer number (108479952).

Almost surely, 2^1561334034 is an apocalyptic number.

1561334034 is an abundant number, since it is smaller than the sum of its proper divisors (1910024430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1561334034 is a wasteful number, since it uses less digits than its factorization.

1561334034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645762.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1561334034 is about 39513.7195667530. The cubic root of 1561334034 is about 1160.1085000573.

Adding to 1561334034 its reverse (4304331651), we get a palindrome (5865665685).

The spelling of 1561334034 in words is "one billion, five hundred sixty-one million, three hundred thirty-four thousand, thirty-four".