1115172106 has 8 divisors (see below), whose sum is σ = 1672900164. Its totient is φ = 557538720.

The previous prime is 1115172101. The next prime is 1115172131. The reversal of 1115172106 is 6012715111.

It can be written as a sum of positive squares in 2 ways, for example, as 1104964081 + 10208025 = 33241^2 + 3195^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1115172101) 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, 31516 + ... + 56776.

Almost surely, 2^1115172106 is an apocalyptic number.

1115172106 is a deficient number, since it is larger than the sum of its proper divisors (557728058).

1115172106 is a wasteful number, since it uses less digits than its factorization.

1115172106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47336.

The product of its (nonzero) digits is 420, while the sum is 25.

The square root of 1115172106 is about 33394.1926987313. The cubic root of 1115172106 is about 1037.0044799932.

Adding to 1115172106 its reverse (6012715111), we get a palindrome (7127887217).

The spelling of 1115172106 in words is "one billion, one hundred fifteen million, one hundred seventy-two thousand, one hundred six".