22160923 has 4 divisors (see below), whose sum is σ = 22632480. Its totient is φ = 21689368.

The previous prime is 22160893. The next prime is 22160933. The reversal of 22160923 is 32906122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32906122 = 2 ⋅16453061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22160923 is a prime.

It is a super-2 number, since 2×22160923² = 982213016423858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22160933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235708 + ... + 235801.

It is an arithmetic number, because the mean of its divisors is an integer number (5658120).

Almost surely, 2^22160923 is an apocalyptic number.

22160923 is a deficient number, since it is larger than the sum of its proper divisors (471557).

22160923 is an equidigital number, since it uses as much as digits as its factorization.

22160923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471556.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 22160923 is about 4707.5389536360. The cubic root of 22160923 is about 280.8854748746.

The spelling of 22160923 in words is "twenty-two million, one hundred sixty thousand, nine hundred twenty-three".