22356545 has 8 divisors (see below), whose sum is σ = 26965224. Its totient is φ = 17793664.

The previous prime is 22356511. The next prime is 22356553. The reversal of 22356545 is 54565322.

It can be written as a sum of positive squares in 4 ways, for example, as 1635841 + 20720704 = 1279^2 + 4552^2 .

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 22356545 - 2¹⁴ = 22340161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10364 + ... + 12333.

It is an arithmetic number, because the mean of its divisors is an integer number (3370653).

Almost surely, 2^22356545 is an apocalyptic number.

It is an amenable number.

22356545 is a deficient number, since it is larger than the sum of its proper divisors (4608679).

22356545 is a wasteful number, since it uses less digits than its factorization.

22356545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22899.

The product of its digits is 36000, while the sum is 32.

The square root of 22356545 is about 4728.2708255767. The cubic root of 22356545 is about 281.7095453475.

The spelling of 22356545 in words is "twenty-two million, three hundred fifty-six thousand, five hundred forty-five".