45454321 has 4 divisors (see below), whose sum is σ = 49586544. Its totient is φ = 41322100.

The previous prime is 45454303. The next prime is 45454361. The reversal of 45454321 is 12345454.

45454321 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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 45454321 - 2¹¹ = 45452273 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45454321.

It is not an unprimeable number, because it can be changed into a prime (45454361) 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, 2066095 + ... + 2066116.

It is an arithmetic number, because the mean of its divisors is an integer number (12396636).

Almost surely, 2^45454321 is an apocalyptic number.

It is an amenable number.

45454321 is a deficient number, since it is larger than the sum of its proper divisors (4132223).

45454321 is a wasteful number, since it uses less digits than its factorization.

45454321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132222.

The product of its digits is 9600, while the sum is 28.

The square root of 45454321 is about 6741.9819786173. The cubic root of 45454321 is about 356.8823403215.

Adding to 45454321 its reverse (12345454), we get a palindrome (57799775).

The spelling of 45454321 in words is "forty-five million, four hundred fifty-four thousand, three hundred twenty-one".