7506145 has 4 divisors (see below), whose sum is σ = 9007380. Its totient is φ = 6004912.

The previous prime is 7506143. The next prime is 7506179. The reversal of 7506145 is 5416057.

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 3083536 + 4422609 = 1756^2 + 2103^2 .

It is a cyclic number.

It is not a de Polignac number, because 7506145 - 2¹ = 7506143 is a prime.

It is a super-2 number, since 2×7506145² = 112684425522050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7506143) 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, 750610 + ... + 750619.

It is an arithmetic number, because the mean of its divisors is an integer number (2251845).

Almost surely, 2^7506145 is an apocalyptic number.

It is an amenable number.

7506145 is a deficient number, since it is larger than the sum of its proper divisors (1501235).

7506145 is a wasteful number, since it uses less digits than its factorization.

7506145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501234.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 7506145 is about 2739.7344761856. The cubic root of 7506145 is about 195.7968271572.

The spelling of 7506145 in words is "seven million, five hundred six thousand, one hundred forty-five".