45654221 has 4 divisors (see below), whose sum is σ = 45760092. Its totient is φ = 45548352.

The previous prime is 45654211. The next prime is 45654247. The reversal of 45654221 is 12245654.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3222025 + 42432196 = 1795^2 + 6514^2 .

It is a cyclic number.

It is not a de Polignac number, because 45654221 - 2²² = 41459917 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 (45654211) 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, 52286 + ... + 53151.

It is an arithmetic number, because the mean of its divisors is an integer number (11440023).

Almost surely, 2^45654221 is an apocalyptic number.

It is an amenable number.

45654221 is a deficient number, since it is larger than the sum of its proper divisors (105871).

45654221 is a wasteful number, since it uses less digits than its factorization.

45654221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105870.

The product of its digits is 9600, while the sum is 29.

The square root of 45654221 is about 6756.7907322930. The cubic root of 45654221 is about 357.4047435584.

Adding to 45654221 its reverse (12245654), we get a palindrome (57899875).

The spelling of 45654221 in words is "forty-five million, six hundred fifty-four thousand, two hundred twenty-one".