4147145 has 16 divisors (see below), whose sum is σ = 5294160. Its totient is φ = 3112704.

The previous prime is 4147103. The next prime is 4147147. The reversal of 4147145 is 5417414.

It can be written as a sum of positive squares in 8 ways, for example, as 38416 + 4108729 = 196^2 + 2027^2 .

It is a cyclic number.

It is not a de Polignac number, because 4147145 - 2⁶ = 4147081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4147147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4979 + ... + 5751.

It is an arithmetic number, because the mean of its divisors is an integer number (330885).

Almost surely, 2^4147145 is an apocalyptic number.

It is an amenable number.

4147145 is a deficient number, since it is larger than the sum of its proper divisors (1147015).

4147145 is a wasteful number, since it uses less digits than its factorization.

4147145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844.

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

The square root of 4147145 is about 2036.4540259971. The cubic root of 4147145 is about 160.6631977771.

The spelling of 4147145 in words is "four million, one hundred forty-seven thousand, one hundred forty-five".