7545049 has 4 divisors (see below), whose sum is σ = 7588836. Its totient is φ = 7501264.

The previous prime is 7545047. The next prime is 7545067. The reversal of 7545049 is 9405457.

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 6350400 + 1194649 = 2520^2 + 1093^2 .

It is a cyclic number.

It is not a de Polignac number, because 7545049 - 2¹ = 7545047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7545047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21634 + ... + 21979.

It is an arithmetic number, because the mean of its divisors is an integer number (1897209).

Almost surely, 2^7545049 is an apocalyptic number.

It is an amenable number.

7545049 is a deficient number, since it is larger than the sum of its proper divisors (43787).

7545049 is a wasteful number, since it uses less digits than its factorization.

7545049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43786.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 7545049 is about 2746.8252583665. The cubic root of 7545049 is about 196.1345130366.

The spelling of 7545049 in words is "seven million, five hundred forty-five thousand, forty-nine".