2185088969 has 4 divisors (see below), whose sum is σ = 2497244544. Its totient is φ = 1872933396.

The previous prime is 2185088963. The next prime is 2185089019. The reversal of 2185088969 is 9698805812.

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 2185088969 - 2¹⁶ = 2185023433 is a prime.

It is a super-2 number, since 2×2185088969² = 9549227604890965922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2185088963) 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 3 ways as a sum of consecutive naturals, for example, 156077777 + ... + 156077790.

It is an arithmetic number, because the mean of its divisors is an integer number (624311136).

Almost surely, 2^2185088969 is an apocalyptic number.

It is an amenable number.

2185088969 is a deficient number, since it is larger than the sum of its proper divisors (312155575).

2185088969 is an equidigital number, since it uses as much as digits as its factorization.

2185088969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312155574.

The product of its (nonzero) digits is 2488320, while the sum is 56.

The square root of 2185088969 is about 46744.9352229736. The cubic root of 2185088969 is about 1297.6464257834.

The spelling of 2185088969 in words is "two billion, one hundred eighty-five million, eighty-eight thousand, nine hundred sixty-nine".