45454561 has 4 divisors (see below), whose sum is σ = 45726912. Its totient is φ = 45182212.

The previous prime is 45454547. The next prime is 45454567. The reversal of 45454561 is 16545454.

45454561 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 45454561 - 2⁷ = 45454433 is a prime.

It is a super-3 number, since 3×45454561³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45454567) 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, 135925 + ... + 136258.

It is an arithmetic number, because the mean of its divisors is an integer number (11431728).

Almost surely, 2^45454561 is an apocalyptic number.

It is an amenable number.

45454561 is a deficient number, since it is larger than the sum of its proper divisors (272351).

45454561 is a wasteful number, since it uses less digits than its factorization.

45454561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272350.

The product of its digits is 48000, while the sum is 34.

The square root of 45454561 is about 6741.9997775141. Note that the first 3 decimals coincide. The cubic root of 45454561 is about 356.8829684365.

The spelling of 45454561 in words is "forty-five million, four hundred fifty-four thousand, five hundred sixty-one".