22135007 has 4 divisors (see below), whose sum is σ = 22207416. Its totient is φ = 22062600.

The previous prime is 22134989. The next prime is 22135051. The reversal of 22135007 is 70053122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70053122 = 2 ⋅35026561.

It is a cyclic number.

It is not a de Polignac number, because 22135007 - 2¹⁶ = 22069471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22135007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22135097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35744 + ... + 36357.

It is an arithmetic number, because the mean of its divisors is an integer number (5551854).

Almost surely, 2^22135007 is an apocalyptic number.

22135007 is a deficient number, since it is larger than the sum of its proper divisors (72409).

22135007 is an equidigital number, since it uses as much as digits as its factorization.

22135007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72408.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 22135007 is about 4704.7855424025. The cubic root of 22135007 is about 280.7759387112.

Adding to 22135007 its reverse (70053122), we get a palindrome (92188129).

The spelling of 22135007 in words is "twenty-two million, one hundred thirty-five thousand, seven".