122163565 has 4 divisors (see below), whose sum is σ = 146596284. Its totient is φ = 97730848.

The previous prime is 122163553. The next prime is 122163577. The reversal of 122163565 is 565361221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 565361221 = 37 ⋅15280033.

It is an interprime number because it is at equal distance from previous prime (122163553) and next prime (122163577).

It can be written as a sum of positive squares in 2 ways, for example, as 57183844 + 64979721 = 7562^2 + 8061^2 .

It is a cyclic number.

It is not a de Polignac number, because 122163565 - 2⁵ = 122163533 is a prime.

It is a super-2 number, since 2×122163565² = 29847873227018450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent 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, 12216352 + ... + 12216361.

It is an arithmetic number, because the mean of its divisors is an integer number (36649071).

Almost surely, 2^122163565 is an apocalyptic number.

It is an amenable number.

122163565 is a deficient number, since it is larger than the sum of its proper divisors (24432719).

122163565 is an equidigital number, since it uses as much as digits as its factorization.

122163565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24432718.

The product of its digits is 10800, while the sum is 31.

The square root of 122163565 is about 11052.7627767902. The cubic root of 122163565 is about 496.1891147674.

The spelling of 122163565 in words is "one hundred twenty-two million, one hundred sixty-three thousand, five hundred sixty-five".