22146755 has 4 divisors (see below), whose sum is σ = 26576112. Its totient is φ = 17717400.

The previous prime is 22146743. The next prime is 22146779. The reversal of 22146755 is 55764122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55764122 = 2 ⋅27882061.

It is not a de Polignac number, because 22146755 - 2⁸ = 22146499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2214671 + ... + 2214680.

It is an arithmetic number, because the mean of its divisors is an integer number (6644028).

Almost surely, 2^22146755 is an apocalyptic number.

22146755 is a deficient number, since it is larger than the sum of its proper divisors (4429357).

22146755 is an equidigital number, since it uses as much as digits as its factorization.

22146755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4429356.

The product of its digits is 16800, while the sum is 32.

The square root of 22146755 is about 4706.0338927806. The cubic root of 22146755 is about 280.8256032138.

The spelling of 22146755 in words is "twenty-two million, one hundred forty-six thousand, seven hundred fifty-five".