22156273 has 4 divisors (see below), whose sum is σ = 22213620. Its totient is φ = 22098928.

The previous prime is 22156271. The next prime is 22156307. The reversal of 22156273 is 37265122.

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 3640464 + 18515809 = 1908^2 + 4303^2 .

It is a cyclic number.

It is not a de Polignac number, because 22156273 - 2¹ = 22156271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22156271) 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, 28090 + ... + 28867.

It is an arithmetic number, because the mean of its divisors is an integer number (5553405).

Almost surely, 2^22156273 is an apocalyptic number.

It is an amenable number.

22156273 is a deficient number, since it is larger than the sum of its proper divisors (57347).

22156273 is an equidigital number, since it uses as much as digits as its factorization.

22156273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57346.

The product of its digits is 5040, while the sum is 28.

The square root of 22156273 is about 4707.0450390877. The cubic root of 22156273 is about 280.8658275458.

The spelling of 22156273 in words is "twenty-two million, one hundred fifty-six thousand, two hundred seventy-three".