121306045 has 16 divisors (see below), whose sum is σ = 166652928. Its totient is φ = 83036160.

The previous prime is 121306039. The next prime is 121306063. The reversal of 121306045 is 540603121.

It is not a de Polignac number, because 121306045 - 2¹⁵ = 121273277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19732 + ... + 25138.

It is an arithmetic number, because the mean of its divisors is an integer number (10415808).

Almost surely, 2^121306045 is an apocalyptic number.

It is an amenable number.

121306045 is a deficient number, since it is larger than the sum of its proper divisors (45346883).

121306045 is an equidigital number, since it uses as much as digits as its factorization.

121306045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 121306045 is about 11013.9023511197. The cubic root of 121306045 is about 495.0253974657.

Adding to 121306045 its reverse (540603121), we get a palindrome (661909166).

The spelling of 121306045 in words is "one hundred twenty-one million, three hundred six thousand, forty-five".