165254012 has 48 divisors (see below), whose sum is σ = 361573632. Its totient is φ = 64202880.

The previous prime is 165254009. The next prime is 165254027. The reversal of 165254012 is 210452561.

It is a super-2 number, since 2×165254012² = 54617776964192288, which contains 22 as substring.

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, 172928 + ... + 173880.

It is an arithmetic number, because the mean of its divisors is an integer number (7532784).

Almost surely, 2^165254012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165254012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180786816).

165254012 is an abundant number, since it is smaller than the sum of its proper divisors (196319620).

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

165254012 is a wasteful number, since it uses less digits than its factorization.

165254012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538 (or 1536 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 165254012 is about 12855.1161799495. The cubic root of 165254012 is about 548.7619668314.

The spelling of 165254012 in words is "one hundred sixty-five million, two hundred fifty-four thousand, twelve".