531913 has 8 divisors (see below), whose sum is σ = 572832. Its totient is φ = 492096.

The previous prime is 531911. The next prime is 531919. The reversal of 531913 is 319135.

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

It is a cyclic number.

It is not a de Polignac number, because 531913 - 2¹ = 531911 is a prime.

531913 is a lucky number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (531911) 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, 906 + ... + 1372.

It is an arithmetic number, because the mean of its divisors is an integer number (71604).

2⁵³¹⁹¹³ is an apocalyptic number.

It is an amenable number.

531913 is a deficient number, since it is larger than the sum of its proper divisors (40919).

531913 is a wasteful number, since it uses less digits than its factorization.

531913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its digits is 405, while the sum is 22.

The square root of 531913 is about 729.3236592899. The cubic root of 531913 is about 81.0239729885.

It can be divided in two parts, 531 and 913, that added together give a square (1444 = 38²).

The spelling of 531913 in words is "five hundred thirty-one thousand, nine hundred thirteen".