7505145 has 12 divisors (see below), whose sum is σ = 13008996. Its totient is φ = 4002720.

The previous prime is 7505129. The next prime is 7505149. The reversal of 7505145 is 5415057.

7505145 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1687401 + 5817744 = 1299^2 + 2412^2 .

It is not a de Polignac number, because 7505145 - 2⁴ = 7505129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7505149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83346 + ... + 83435.

It is an arithmetic number, because the mean of its divisors is an integer number (1084083).

Almost surely, 2^7505145 is an apocalyptic number.

It is an amenable number.

7505145 is a deficient number, since it is larger than the sum of its proper divisors (5503851).

7505145 is a wasteful number, since it uses less digits than its factorization.

7505145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166792 (or 166789 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 7505145 is about 2739.5519706697. The cubic root of 7505145 is about 195.7881318139.

The spelling of 7505145 in words is "seven million, five hundred five thousand, one hundred forty-five".