165420214 has 8 divisors (see below), whose sum is σ = 249195960. Its totient is φ = 82354896.

The previous prime is 165420197. The next prime is 165420293. The reversal of 165420214 is 412024561.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177024 + ... + 177955.

It is an arithmetic number, because the mean of its divisors is an integer number (31149495).

Almost surely, 2^165420214 is an apocalyptic number.

165420214 is a deficient number, since it is larger than the sum of its proper divisors (83775746).

165420214 is a wasteful number, since it uses less digits than its factorization.

165420214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355214.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 165420214 is about 12861.5789854901. The cubic root of 165420214 is about 548.9458751799.

Adding to 165420214 its reverse (412024561), we get a palindrome (577444775).

The spelling of 165420214 in words is "one hundred sixty-five million, four hundred twenty thousand, two hundred fourteen".