165000631 has 8 divisors (see below), whose sum is σ = 170799104. Its totient is φ = 159231960.

The previous prime is 165000629. The next prime is 165000637. The reversal of 165000631 is 136000561.

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 165000631 - 2¹ = 165000629 is a prime.

It is a super-2 number, since 2×165000631² = 54450416460796322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165000637) 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, 4126 + ... + 18628.

It is an arithmetic number, because the mean of its divisors is an integer number (21349888).

Almost surely, 2^165000631 is an apocalyptic number.

165000631 is a deficient number, since it is larger than the sum of its proper divisors (5798473).

165000631 is a wasteful number, since it uses less digits than its factorization.

165000631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14901.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 165000631 is about 12845.2571402833. The cubic root of 165000631 is about 548.4813544167.

The spelling of 165000631 in words is "one hundred sixty-five million, six hundred thirty-one", and thus it is an aban number.