2136985169 has 8 divisors (see below), whose sum is σ = 2354339520. Its totient is φ = 1923478000.

The previous prime is 2136985163. The next prime is 2136985183. The reversal of 2136985169 is 9615896312.

It is a happy number.

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 2136985169 - 2¹⁶ = 2136919633 is a prime.

It is a super-2 number, since 2×2136985169² = 9133411225051917122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2136985163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960629 + ... + 962850.

It is an arithmetic number, because the mean of its divisors is an integer number (294292440).

Almost surely, 2^2136985169 is an apocalyptic number.

It is an amenable number.

2136985169 is a deficient number, since it is larger than the sum of its proper divisors (217354351).

2136985169 is a wasteful number, since it uses less digits than its factorization.

2136985169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923591.

The product of its digits is 699840, while the sum is 50.

The square root of 2136985169 is about 46227.5369125373. The cubic root of 2136985169 is about 1288.0533041945.

The spelling of 2136985169 in words is "two billion, one hundred thirty-six million, nine hundred eighty-five thousand, one hundred sixty-nine".