122401345 has 16 divisors (see below), whose sum is σ = 162171072. Its totient is φ = 87943360.

The previous prime is 122401339. The next prime is 122401379. The reversal of 122401345 is 543104221.

It is not a de Polignac number, because 122401345 - 2⁵ = 122401313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8842 + ... + 17971.

It is an arithmetic number, because the mean of its divisors is an integer number (10135692).

Almost surely, 2^122401345 is an apocalyptic number.

It is an amenable number.

122401345 is a deficient number, since it is larger than the sum of its proper divisors (39769727).

122401345 is a wasteful number, since it uses less digits than its factorization.

122401345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26912.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 122401345 is about 11063.5141343065. The cubic root of 122401345 is about 496.5108347559.

Adding to 122401345 its reverse (543104221), we get a palindrome (665505566).

The spelling of 122401345 in words is "one hundred twenty-two million, four hundred one thousand, three hundred forty-five".