122445401 has 8 divisors (see below), whose sum is σ = 132646920. Its totient is φ = 113024496.

The previous prime is 122445383. The next prime is 122445413. The reversal of 122445401 is 104544221.

It can be written as a sum of positive squares in 4 ways, for example, as 14784025 + 107661376 = 3845^2 + 10376^2 .

It is not a de Polignac number, because 122445401 - 2¹⁴ = 122429017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122445901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25670 + ... + 30063.

It is an arithmetic number, because the mean of its divisors is an integer number (16580865).

Almost surely, 2^122445401 is an apocalyptic number.

It is an amenable number.

122445401 is a deficient number, since it is larger than the sum of its proper divisors (10201519).

122445401 is an frugal number, since it uses more digits than its factorization.

122445401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55772 (or 55746 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 122445401 is about 11065.5050042915. The cubic root of 122445401 is about 496.5703974387.

Adding to 122445401 its reverse (104544221), we get a palindrome (226989622).

The spelling of 122445401 in words is "one hundred twenty-two million, four hundred forty-five thousand, four hundred one".