1561038327 has 12 divisors (see below), whose sum is σ = 2255315920. Its totient is φ = 1040469408.

The previous prime is 1561038253. The next prime is 1561038383. The reversal of 1561038327 is 7238301651.

1561038327 is a `hidden beast` number, since 1 + 5 + 610 + 3 + 8 + 32 + 7 = 666.

It is not a de Polignac number, because 1561038327 - 2³⁰ = 487296503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1561038291 and 1561038300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1561038827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33483 + ... + 65139.

Almost surely, 2^1561038327 is an apocalyptic number.

1561038327 is a deficient number, since it is larger than the sum of its proper divisors (694277593).

1561038327 is a wasteful number, since it uses less digits than its factorization.

1561038327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37142 (or 37139 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1561038327 is about 39509.9775626360. The cubic root of 1561038327 is about 1160.0352563105.

Adding to 1561038327 its reverse (7238301651), we get a palindrome (8799339978).

The spelling of 1561038327 in words is "one billion, five hundred sixty-one million, thirty-eight thousand, three hundred twenty-seven".