165397248 has 72 divisors (see below), whose sum is σ = 489129200. Its totient is φ = 55130112.

The previous prime is 165397247. The next prime is 165397249. The reversal of 165397248 is 842793561.

165397248 is a `hidden beast` number, since 1 + 6 + 539 + 72 + 48 = 666.

It is an interprime number because it is at equal distance from previous prime (165397247) and next prime (165397249).

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (165397247) 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, 5053 + ... + 18876.

Almost surely, 2^165397248 is an apocalyptic number.

165397248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

165397248 is an abundant number, since it is smaller than the sum of its proper divisors (323731952).

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

165397248 is an equidigital number, since it uses as much as digits as its factorization.

165397248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23954 (or 23934 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 165397248 is about 12860.6861403270. The cubic root of 165397248 is about 548.9204698316.

The spelling of 165397248 in words is "one hundred sixty-five million, three hundred ninety-seven thousand, two hundred forty-eight".