4531145 has 4 divisors (see below), whose sum is σ = 5437380. Its totient is φ = 3624912.

The previous prime is 4531127. The next prime is 4531157. The reversal of 4531145 is 5411354.

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 1008016 + 3523129 = 1004^2 + 1877^2 .

It is a cyclic number.

It is not a de Polignac number, because 4531145 - 2⁶ = 4531081 is a prime.

It is a super-2 number, since 2×4531145² = 41062550022050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4531145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453110 + ... + 453119.

It is an arithmetic number, because the mean of its divisors is an integer number (1359345).

Almost surely, 2^4531145 is an apocalyptic number.

It is an amenable number.

4531145 is a deficient number, since it is larger than the sum of its proper divisors (906235).

4531145 is an equidigital number, since it uses as much as digits as its factorization.

4531145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906234.

The product of its digits is 1200, while the sum is 23.

The square root of 4531145 is about 2128.6486323487. The cubic root of 4531145 is about 165.4763705186.

Adding to 4531145 its reverse (5411354), we get a palindrome (9942499).

The spelling of 4531145 in words is "four million, five hundred thirty-one thousand, one hundred forty-five".