165243260 has 48 divisors (see below), whose sum is σ = 427094976. Its totient is φ = 52296192.

The previous prime is 165243257. The next prime is 165243263. The reversal of 165243260 is 62342561.

165243260 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (165243257) and next prime (165243263).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165243263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43577 + ... + 47216.

It is an arithmetic number, because the mean of its divisors is an integer number (8897812).

Almost surely, 2^165243260 is an apocalyptic number.

165243260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165243260 is an abundant number, since it is smaller than the sum of its proper divisors (261851716).

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

165243260 is a wasteful number, since it uses less digits than its factorization.

165243260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90822 (or 90820 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 165243260 is about 12854.6979738927. The cubic root of 165243260 is about 548.7500651200.

The spelling of 165243260 in words is "one hundred sixty-five million, two hundred forty-three thousand, two hundred sixty".