531223135 has 8 divisors (see below), whose sum is σ = 643779936. Its totient is φ = 420770400.

The previous prime is 531223103. The next prime is 531223141. The reversal of 531223135 is 531322135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 531223135 - 2⁵ = 531223103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525459 + ... + 526468.

It is an arithmetic number, because the mean of its divisors is an integer number (80472492).

Almost surely, 2^531223135 is an apocalyptic number.

531223135 is a deficient number, since it is larger than the sum of its proper divisors (112556801).

531223135 is a wasteful number, since it uses less digits than its factorization.

531223135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052033.

The product of its digits is 2700, while the sum is 25.

The square root of 531223135 is about 23048.2783521893. The cubic root of 531223135 is about 809.8892979840.

The spelling of 531223135 in words is "five hundred thirty-one million, two hundred twenty-three thousand, one hundred thirty-five".