100045122 has 16 divisors (see below), whose sum is σ = 206545152. Its totient is φ = 32272560.

The previous prime is 100045117. The next prime is 100045123. The reversal of 100045122 is 221540001.

It is not an unprimeable number, because it can be changed into a prime (100045123) 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 7 ways as a sum of consecutive naturals, for example, 268753 + ... + 269124.

It is an arithmetic number, because the mean of its divisors is an integer number (12909072).

Almost surely, 2^100045122 is an apocalyptic number.

100045122 is an abundant number, since it is smaller than the sum of its proper divisors (106500030).

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

100045122 is a wasteful number, since it uses less digits than its factorization.

100045122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537913.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 100045122 is about 10002.2558455580. The cubic root of 100045122 is about 464.2286854541.

Adding to 100045122 its reverse (221540001), we get a palindrome (321585123).

The spelling of 100045122 in words is "one hundred million, forty-five thousand, one hundred twenty-two".