45522121 has 4 divisors (see below), whose sum is σ = 45823744. Its totient is φ = 45220500.

The previous prime is 45522101. The next prime is 45522131. The reversal of 45522121 is 12122554.

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 a cyclic number.

It is not a de Polignac number, because 45522121 - 2⁵ = 45522089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45522092 and 45522101.

It is not an unprimeable number, because it can be changed into a prime (45522101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150585 + ... + 150886.

It is an arithmetic number, because the mean of its divisors is an integer number (11455936).

Almost surely, 2^45522121 is an apocalyptic number.

It is an amenable number.

45522121 is a deficient number, since it is larger than the sum of its proper divisors (301623).

45522121 is a wasteful number, since it uses less digits than its factorization.

45522121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301622.

The product of its digits is 800, while the sum is 22.

The square root of 45522121 is about 6747.0082999801. The cubic root of 45522121 is about 357.0596949454.

Adding to 45522121 its reverse (12122554), we get a palindrome (57644675).

The spelling of 45522121 in words is "forty-five million, five hundred twenty-two thousand, one hundred twenty-one".