122244545 has 4 divisors (see below), whose sum is σ = 146693460. Its totient is φ = 97795632.

The previous prime is 122244533. The next prime is 122244547. The reversal of 122244545 is 545442221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545442221 = 1321 ⋅412901.

It can be written as a sum of positive squares in 2 ways, for example, as 42981136 + 79263409 = 6556^2 + 8903^2 .

It is a cyclic number.

It is not a de Polignac number, because 122244545 - 2⁸ = 122244289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122244547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12224450 + ... + 12224459.

It is an arithmetic number, because the mean of its divisors is an integer number (36673365).

Almost surely, 2^122244545 is an apocalyptic number.

It is an amenable number.

122244545 is a deficient number, since it is larger than the sum of its proper divisors (24448915).

122244545 is an equidigital number, since it uses as much as digits as its factorization.

122244545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24448914.

The product of its digits is 12800, while the sum is 29.

The square root of 122244545 is about 11056.4255073690. The cubic root of 122244545 is about 496.2987287898.

Adding to 122244545 its reverse (545442221), we get a palindrome (667686766).

The spelling of 122244545 in words is "one hundred twenty-two million, two hundred forty-four thousand, five hundred forty-five".