45143147 has 4 divisors (see below), whose sum is σ = 51592176. Its totient is φ = 38694120.

The previous prime is 45143129. The next prime is 45143167. The reversal of 45143147 is 74134154.

It is a happy number.

45143147 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 is a cyclic number.

It is not a de Polignac number, because 45143147 - 2¹⁶ = 45077611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45143117) 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, 3224504 + ... + 3224517.

It is an arithmetic number, because the mean of its divisors is an integer number (12898044).

Almost surely, 2^45143147 is an apocalyptic number.

45143147 is a deficient number, since it is larger than the sum of its proper divisors (6449029).

45143147 is an equidigital number, since it uses as much as digits as its factorization.

45143147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6449028.

The product of its digits is 6720, while the sum is 29.

The square root of 45143147 is about 6718.8650083180. The cubic root of 45143147 is about 356.0660857620.

The spelling of 45143147 in words is "forty-five million, one hundred forty-three thousand, one hundred forty-seven".