122042745 has 48 divisors (see below), whose sum is σ = 244363392. Its totient is φ = 55687680.

The previous prime is 122042717. The next prime is 122042747. The reversal of 122042745 is 547240221.

It is not a de Polignac number, because 122042745 - 2⁹ = 122042233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122042747) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1164 + ... + 15666.

It is an arithmetic number, because the mean of its divisors is an integer number (5090904).

Almost surely, 2^122042745 is an apocalyptic number.

122042745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122042745 is an abundant number, since it is smaller than the sum of its proper divisors (122320647).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122042745 is a wasteful number, since it uses less digits than its factorization.

122042745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14542 (or 14539 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 122042745 is about 11047.2958229605. The cubic root of 122042745 is about 496.0254834830.

Adding to 122042745 its reverse (547240221), we get a palindrome (669282966).

The spelling of 122042745 in words is "one hundred twenty-two million, forty-two thousand, seven hundred forty-five".