122445777 has 4 divisors (see below), whose sum is σ = 163261040. Its totient is φ = 81630516.

The previous prime is 122445769. The next prime is 122445779. The reversal of 122445777 is 777544221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 777544221 = 3 ⋅259181407.

It is not a de Polignac number, because 122445777 - 2³ = 122445769 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (122445779) 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, 20407627 + ... + 20407632.

It is an arithmetic number, because the mean of its divisors is an integer number (40815260).

Almost surely, 2^122445777 is an apocalyptic number.

It is an amenable number.

122445777 is a deficient number, since it is larger than the sum of its proper divisors (40815263).

122445777 is an equidigital number, since it uses as much as digits as its factorization.

122445777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40815262.

The product of its digits is 109760, while the sum is 39.

The square root of 122445777 is about 11065.5219940137. The cubic root of 122445777 is about 496.5709057204.

Adding to 122445777 its reverse (777544221), we get a palindrome (899989998).

The spelling of 122445777 in words is "one hundred twenty-two million, four hundred forty-five thousand, seven hundred seventy-seven".