45670145 has 4 divisors (see below), whose sum is σ = 54804180. Its totient is φ = 36536112.

The previous prime is 45670133. The next prime is 45670147. The reversal of 45670145 is 54107654.

45670145 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 an emirpimes, since its reverse is a distinct semiprime: 54107654 = 2 ⋅27053827.

It can be written as a sum of positive squares in 2 ways, for example, as 25321024 + 20349121 = 5032^2 + 4511^2 .

It is a cyclic number.

It is not a de Polignac number, because 45670145 - 2⁸ = 45669889 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (45670147) 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, 4567010 + ... + 4567019.

It is an arithmetic number, because the mean of its divisors is an integer number (13701045).

Almost surely, 2^45670145 is an apocalyptic number.

It is an amenable number.

45670145 is a deficient number, since it is larger than the sum of its proper divisors (9134035).

45670145 is an equidigital number, since it uses as much as digits as its factorization.

45670145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9134034.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 45670145 is about 6757.9689996330. The cubic root of 45670145 is about 357.4462924845.

Adding to 45670145 its reverse (54107654), we get a palindrome (99777799).

The spelling of 45670145 in words is "forty-five million, six hundred seventy thousand, one hundred forty-five".