1106817961 has 4 divisors (see below), whose sum is σ = 1106958672. Its totient is φ = 1106677252.

The previous prime is 1106817947. The next prime is 1106817967. The reversal of 1106817961 is 1697186011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1106817961 - 2⁹ = 1106817449 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1106817967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57811 + ... + 74536.

It is an arithmetic number, because the mean of its divisors is an integer number (276739668).

Almost surely, 2^1106817961 is an apocalyptic number.

It is an amenable number.

1106817961 is a deficient number, since it is larger than the sum of its proper divisors (140711).

1106817961 is an equidigital number, since it uses as much as digits as its factorization.

1106817961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140710.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 1106817961 is about 33268.8737561102. The cubic root of 1106817961 is about 1034.4084653010.

The spelling of 1106817961 in words is "one billion, one hundred six million, eight hundred seventeen thousand, nine hundred sixty-one".