535138 has 4 divisors (see below), whose sum is σ = 802710. Its totient is φ = 267568.

The previous prime is 535133. The next prime is 535151. The reversal of 535138 is 831535.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 380689 + 154449 = 617^2 + 393^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (535133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133783 + ... + 133786.

2⁵³⁵¹³⁸ is an apocalyptic number.

535138 is a deficient number, since it is larger than the sum of its proper divisors (267572).

535138 is a wasteful number, since it uses less digits than its factorization.

535138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267571.

The product of its digits is 1800, while the sum is 25.

The square root of 535138 is about 731.5312706918. The cubic root of 535138 is about 81.1873931911.

The spelling of 535138 in words is "five hundred thirty-five thousand, one hundred thirty-eight".