531006165 has 16 divisors (see below), whose sum is σ = 944011200. Its totient is φ = 283203216.

The previous prime is 531006149. The next prime is 531006191. The reversal of 531006165 is 561600135.

It is a happy number.

It is not a de Polignac number, because 531006165 - 2⁴ = 531006149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1966555 + ... + 1966824.

It is an arithmetic number, because the mean of its divisors is an integer number (59000700).

Almost surely, 2^531006165 is an apocalyptic number.

It is an amenable number.

531006165 is a deficient number, since it is larger than the sum of its proper divisors (413005035).

531006165 is a wasteful number, since it uses less digits than its factorization.

531006165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933393 (or 3933387 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 531006165 is about 23043.5710123236. The cubic root of 531006165 is about 809.7790206520.

The spelling of 531006165 in words is "five hundred thirty-one million, six thousand, one hundred sixty-five".