45666545 has 4 divisors (see below), whose sum is σ = 54799860. Its totient is φ = 36533232.

The previous prime is 45666541. The next prime is 45666571. The reversal of 45666545 is 54566654.

45666545 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.

It can be written as a sum of positive squares in 2 ways, for example, as 11607649 + 34058896 = 3407^2 + 5836^2 .

It is a cyclic number.

It is not a de Polignac number, because 45666545 - 2² = 45666541 is a prime.

It is a super-3 number, since 3×45666545³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (45666541) 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, 4566650 + ... + 4566659.

It is an arithmetic number, because the mean of its divisors is an integer number (13699965).

Almost surely, 2^45666545 is an apocalyptic number.

It is an amenable number.

45666545 is a deficient number, since it is larger than the sum of its proper divisors (9133315).

45666545 is an equidigital number, since it uses as much as digits as its factorization.

45666545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9133314.

The product of its digits is 432000, while the sum is 41.

The square root of 45666545 is about 6757.7026421706. The cubic root of 45666545 is about 357.4369002038.

It can be divided in two parts, 4566 and 6545, that added together give a palindrome (11111).

The spelling of 45666545 in words is "forty-five million, six hundred sixty-six thousand, five hundred forty-five".