7538542 has 12 divisors (see below), whose sum is σ = 12429648. Its totient is φ = 3426500.

The previous prime is 7538533. The next prime is 7538543. The reversal of 7538542 is 2458357.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7538498 and 7538507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7538543) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 15334 + ... + 15817.

It is an arithmetic number, because the mean of its divisors is an integer number (1035804).

Almost surely, 2^7538542 is an apocalyptic number.

7538542 is a deficient number, since it is larger than the sum of its proper divisors (4891106).

7538542 is a wasteful number, since it uses less digits than its factorization.

7538542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31175 (or 31164 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 7538542 is about 2745.6405445724. The cubic root of 7538542 is about 196.0781133879.

The spelling of 7538542 in words is "seven million, five hundred thirty-eight thousand, five hundred forty-two".