165230406 has 24 divisors (see below), whose sum is σ = 390545064. Its totient is φ = 50069760.

The previous prime is 165230389. The next prime is 165230423. The reversal of 165230406 is 604032561.

165230406 is a `hidden beast` number, since 1 + 652 + 3 + 0 + 4 + 0 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (165230389) and next prime (165230423).

It is a self number, because there is not a number n which added to its sum of digits gives 165230406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417051 + ... + 417446.

It is an arithmetic number, because the mean of its divisors is an integer number (16272711).

Almost surely, 2^165230406 is an apocalyptic number.

165230406 is an abundant number, since it is smaller than the sum of its proper divisors (225314658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165230406 is a wasteful number, since it uses less digits than its factorization.

165230406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834516 (or 834513 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 165230406 is about 12854.1979913179. The cubic root of 165230406 is about 548.7358359643.

Adding to 165230406 its reverse (604032561), we get a palindrome (769262967).

The spelling of 165230406 in words is "one hundred sixty-five million, two hundred thirty thousand, four hundred six".