165346140 has 24 divisors (see below), whose sum is σ = 462969360. Its totient is φ = 44092288.

The previous prime is 165346127. The next prime is 165346147. The reversal of 165346140 is 41643561.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 165346098 and 165346107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165346147) 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, 1377825 + ... + 1377944.

It is an arithmetic number, because the mean of its divisors is an integer number (19290390).

Almost surely, 2^165346140 is an apocalyptic number.

165346140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165346140 is an abundant number, since it is smaller than the sum of its proper divisors (297623220).

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

165346140 is a wasteful number, since it uses less digits than its factorization.

165346140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755781 (or 2755779 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 165346140 is about 12858.6990010654. The cubic root of 165346140 is about 548.8639249217.

The spelling of 165346140 in words is "one hundred sixty-five million, three hundred forty-six thousand, one hundred forty".