45001121 has 4 divisors (see below), whose sum is σ = 49092144. Its totient is φ = 40910100.

The previous prime is 45001109. The next prime is 45001123. The reversal of 45001121 is 12110054.

45001121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45001121 - 2¹⁰ = 45000097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45001096 and 45001105.

It is not an unprimeable number, because it can be changed into a prime (45001123) 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 3 ways as a sum of consecutive naturals, for example, 2045495 + ... + 2045516.

It is an arithmetic number, because the mean of its divisors is an integer number (12273036).

Almost surely, 2^45001121 is an apocalyptic number.

It is an amenable number.

45001121 is a deficient number, since it is larger than the sum of its proper divisors (4091023).

45001121 is a wasteful number, since it uses less digits than its factorization.

45001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091022.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 45001121 is about 6708.2874863858. The cubic root of 45001121 is about 355.6922839633.

Adding to 45001121 its reverse (12110054), we get a palindrome (57111175).

The spelling of 45001121 in words is "forty-five million, one thousand, one hundred twenty-one".