2136469 has 8 divisors (see below), whose sum is σ = 2213568. Its totient is φ = 2060640.

The previous prime is 2136457. The next prime is 2136473. The reversal of 2136469 is 9646312.

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 2136469 - 2⁵ = 2136437 is a prime.

It is a super-2 number, since 2×2136469² = 9128999575922, which contains 22 as substring.

It is a Duffinian number.

2136469 is a lucky number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 2136469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136419) 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, 4144 + ... + 4630.

It is an arithmetic number, because the mean of its divisors is an integer number (276696).

2^2136469 is an apocalyptic number.

It is an amenable number.

2136469 is a deficient number, since it is larger than the sum of its proper divisors (77099).

2136469 is a wasteful number, since it uses less digits than its factorization.

2136469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635.

The product of its digits is 7776, while the sum is 31.

The square root of 2136469 is about 1461.6665146332. Note that the first 3 decimals coincide. The cubic root of 2136469 is about 128.7949590057.

The spelling of 2136469 in words is "two million, one hundred thirty-six thousand, four hundred sixty-nine".