4145147 has 4 divisors (see below), whose sum is σ = 4257216. Its totient is φ = 4033080.

The previous prime is 4145117. The next prime is 4145171. The reversal of 4145147 is 7415414.

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 4145147 - 2¹⁴ = 4128763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4145117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55979 + ... + 56052.

It is an arithmetic number, because the mean of its divisors is an integer number (1064304).

Almost surely, 2^4145147 is an apocalyptic number.

4145147 is a deficient number, since it is larger than the sum of its proper divisors (112069).

4145147 is a wasteful number, since it uses less digits than its factorization.

4145147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112068.

The product of its digits is 2240, while the sum is 26.

The square root of 4145147 is about 2035.9634083156. The cubic root of 4145147 is about 160.6373923428.

The spelling of 4145147 in words is "four million, one hundred forty-five thousand, one hundred forty-seven".