7575145 has 4 divisors (see below), whose sum is σ = 9090180. Its totient is φ = 6060112.

The previous prime is 7575133. The next prime is 7575179. The reversal of 7575145 is 5415757.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5415757 = 1277 ⋅4241.

It can be written as a sum of positive squares in 2 ways, for example, as 4575321 + 2999824 = 2139^2 + 1732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7575145 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7575145.

It is an unprimeable number.

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, 757510 + ... + 757519.

It is an arithmetic number, because the mean of its divisors is an integer number (2272545).

Almost surely, 2^7575145 is an apocalyptic number.

It is an amenable number.

7575145 is a deficient number, since it is larger than the sum of its proper divisors (1515035).

7575145 is a wasteful number, since it uses less digits than its factorization.

7575145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515034.

The product of its digits is 24500, while the sum is 34.

The square root of 7575145 is about 2752.2981306537. The cubic root of 7575145 is about 196.3949501842.

The spelling of 7575145 in words is "seven million, five hundred seventy-five thousand, one hundred forty-five".