1106072561 has 8 divisors (see below), whose sum is σ = 1239236544. Its totient is φ = 978343920.

The previous prime is 1106072549. The next prime is 1106072609. The reversal of 1106072561 is 1652706011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1106072561 - 2⁶ = 1106072497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1106072501) 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 7 ways as a sum of consecutive naturals, for example, 1358405 + ... + 1359218.

It is an arithmetic number, because the mean of its divisors is an integer number (154904568).

Almost surely, 2^1106072561 is an apocalyptic number.

1106072561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1106072561 is a deficient number, since it is larger than the sum of its proper divisors (133163983).

1106072561 is a wasteful number, since it uses less digits than its factorization.

1106072561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717671.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 1106072561 is about 33257.6692057637. The cubic root of 1106072561 is about 1034.1762015044.

Adding to 1106072561 its reverse (1652706011), we get a palindrome (2758778572).

The spelling of 1106072561 in words is "one billion, one hundred six million, seventy-two thousand, five hundred sixty-one".