1561108 has 12 divisors (see below), whose sum is σ = 2741760. Its totient is φ = 777752.

The previous prime is 1561069. The next prime is 1561111. The reversal of 1561108 is 8011651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023 + ... + 2041.

It is an arithmetic number, because the mean of its divisors is an integer number (228480).

2^1561108 is an apocalyptic number.

It is an amenable number.

1561108 is a deficient number, since it is larger than the sum of its proper divisors (1180652).

1561108 is a wasteful number, since it uses less digits than its factorization.

1561108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1561108 is about 1249.4430759342. The cubic root of 1561108 is about 116.0052514468.

Adding to 1561108 its reverse (8011651), we get a palindrome (9572759).

The spelling of 1561108 in words is "one million, five hundred sixty-one thousand, one hundred eight".