22136687 has 2 divisors, whose sum is σ = 22136688. Its totient is φ = 22136686.

The previous prime is 22136663. The next prime is 22136731. The reversal of 22136687 is 78663122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22136687 - 2¹⁴ = 22120303 is a prime.

It is a super-2 number, since 2×22136687² = 980065822671938, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22136617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11068343 + 11068344.

It is an arithmetic number, because the mean of its divisors is an integer number (11068344).

Almost surely, 2^22136687 is an apocalyptic number.

22136687 is a deficient number, since it is larger than the sum of its proper divisors (1).

22136687 is an equidigital number, since it uses as much as digits as its factorization.

22136687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 22136687 is about 4704.9640806280. The cubic root of 22136687 is about 280.7830419639.

The spelling of 22136687 in words is "twenty-two million, one hundred thirty-six thousand, six hundred eighty-seven".