45354221 has 4 divisors (see below), whose sum is σ = 49477344. Its totient is φ = 41231100.

The previous prime is 45354217. The next prime is 45354233. The reversal of 45354221 is 12245354.

It is a happy number.

45354221 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 a cyclic number.

It is not a de Polignac number, because 45354221 - 2² = 45354217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45351221) 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, 2061545 + ... + 2061566.

It is an arithmetic number, because the mean of its divisors is an integer number (12369336).

Almost surely, 2^45354221 is an apocalyptic number.

It is an amenable number.

45354221 is a deficient number, since it is larger than the sum of its proper divisors (4123123).

45354221 is a wasteful number, since it uses less digits than its factorization.

45354221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123122.

The product of its digits is 4800, while the sum is 26.

The square root of 45354221 is about 6734.5542539948. The cubic root of 45354221 is about 356.6201710530.

Adding to 45354221 its reverse (12245354), we get a palindrome (57599575).

The spelling of 45354221 in words is "forty-five million, three hundred fifty-four thousand, two hundred twenty-one".