7133538 has 16 divisors (see below), whose sum is σ = 14309280. Its totient is φ = 2370816.

The previous prime is 7133537. The next prime is 7133551. The reversal of 7133538 is 8353317.

It is not an unprimeable number, because it can be changed into a prime (7133537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706 + ... + 3842.

It is an arithmetic number, because the mean of its divisors is an integer number (894330).

Almost surely, 2^7133538 is an apocalyptic number.

7133538 is an abundant number, since it is smaller than the sum of its proper divisors (7175742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7133538 is a wasteful number, since it uses less digits than its factorization.

7133538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521.

The product of its digits is 7560, while the sum is 30.

The square root of 7133538 is about 2670.8683981058. The cubic root of 7133538 is about 192.5018878771.

The spelling of 7133538 in words is "seven million, one hundred thirty-three thousand, five hundred thirty-eight".