45025121 has 2 divisors, whose sum is σ = 45025122. Its totient is φ = 45025120.

The previous prime is 45025109. The next prime is 45025151. The reversal of 45025121 is 12152054.

45025121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44408896 + 616225 = 6664^2 + 785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45025121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45025093 and 45025102.

It is not a weakly prime, because it can be changed into another prime (45025151) 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 as a sum of consecutive naturals, namely, 22512560 + 22512561.

It is an arithmetic number, because the mean of its divisors is an integer number (22512561).

Almost surely, 2^45025121 is an apocalyptic number.

It is an amenable number.

45025121 is a deficient number, since it is larger than the sum of its proper divisors (1).

45025121 is an equidigital number, since it uses as much as digits as its factorization.

45025121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 45025121 is about 6710.0760800456. The cubic root of 45025121 is about 355.7555053342.

Adding to 45025121 its reverse (12152054), we get a palindrome (57177175).

The spelling of 45025121 in words is "forty-five million, twenty-five thousand, one hundred twenty-one".