4507145 has 4 divisors (see below), whose sum is σ = 5408580. Its totient is φ = 3605712.

The previous prime is 4507133. The next prime is 4507147. The reversal of 4507145 is 5417054.

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 1630729 + 2876416 = 1277^2 + 1696^2 .

It is a cyclic number.

It is not a de Polignac number, because 4507145 - 2¹⁰ = 4506121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4507147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450710 + ... + 450719.

It is an arithmetic number, because the mean of its divisors is an integer number (1352145).

Almost surely, 2^4507145 is an apocalyptic number.

It is an amenable number.

4507145 is a deficient number, since it is larger than the sum of its proper divisors (901435).

4507145 is an equidigital number, since it uses as much as digits as its factorization.

4507145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901434.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 4507145 is about 2123.0037682491. The cubic root of 4507145 is about 165.1836950179.

Subtracting 4507145 from its reverse (5417054), we obtain a palindrome (909909).

The spelling of 4507145 in words is "four million, five hundred seven thousand, one hundred forty-five".