22680137 has 4 divisors (see below), whose sum is σ = 22935060. Its totient is φ = 22425216.

The previous prime is 22680121. The next prime is 22680143. The reversal of 22680137 is 73108622.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11363641 + 11316496 = 3371^2 + 3364^2 .

It is a cyclic number.

It is not a de Polignac number, because 22680137 - 2⁴ = 22680121 is a prime.

It is a super-3 number, since 3×22680137³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22680937) 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, 127328 + ... + 127505.

It is an arithmetic number, because the mean of its divisors is an integer number (5733765).

Almost surely, 2^22680137 is an apocalyptic number.

It is an amenable number.

22680137 is a deficient number, since it is larger than the sum of its proper divisors (254923).

22680137 is an equidigital number, since it uses as much as digits as its factorization.

22680137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254922.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 22680137 is about 4762.3667435425. The cubic root of 22680137 is about 283.0622087685.

Adding to 22680137 its reverse (73108622), we get a palindrome (95788759).

The spelling of 22680137 in words is "twenty-two million, six hundred eighty thousand, one hundred thirty-seven".