22136671 has 4 divisors (see below), whose sum is σ = 22607712. Its totient is φ = 21665632.

The previous prime is 22136663. The next prime is 22136687. The reversal of 22136671 is 17663122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22136671 - 2³ = 22136663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22136641) 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, 235450 + ... + 235543.

It is an arithmetic number, because the mean of its divisors is an integer number (5651928).

Almost surely, 2^22136671 is an apocalyptic number.

22136671 is a deficient number, since it is larger than the sum of its proper divisors (471041).

22136671 is an equidigital number, since it uses as much as digits as its factorization.

22136671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471040.

The product of its digits is 3024, while the sum is 28.

The square root of 22136671 is about 4704.9623802959. The cubic root of 22136671 is about 280.7829743156.

Adding to 22136671 its reverse (17663122), we get a palindrome (39799793).

The spelling of 22136671 in words is "twenty-two million, one hundred thirty-six thousand, six hundred seventy-one".