22540230145 has 8 divisors (see below), whose sum is σ = 27049107456. Its totient is φ = 18031629936.

The previous prime is 22540230137. The next prime is 22540230149. The reversal of 22540230145 is 54103204522.

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 22540230145 - 2³ = 22540230137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22540230149) 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, 217954 + ... + 304276.

It is an arithmetic number, because the mean of its divisors is an integer number (3381138432).

Almost surely, 2^22540230145 is an apocalyptic number.

It is an amenable number.

22540230145 is a deficient number, since it is larger than the sum of its proper divisors (4508877311).

22540230145 is an equidigital number, since it uses as much as digits as its factorization.

22540230145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138551.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22540230145 its reverse (54103204522), we get a palindrome (76643434667).

The spelling of 22540230145 in words is "twenty-two billion, five hundred forty million, two hundred thirty thousand, one hundred forty-five".