165142203 has 8 divisors (see below), whose sum is σ = 223476288. Its totient is φ = 108451464.

The previous prime is 165142193. The next prime is 165142247. The reversal of 165142203 is 302241561.

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

It is not a de Polignac number, because 165142203 - 2¹² = 165138107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165142253) 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, 410601 + ... + 411002.

It is an arithmetic number, because the mean of its divisors is an integer number (27934536).

Almost surely, 2^165142203 is an apocalyptic number.

165142203 is a deficient number, since it is larger than the sum of its proper divisors (58334085).

165142203 is an equidigital number, since it uses as much as digits as its factorization.

165142203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821673.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 165142203 is about 12850.7666308279. The cubic root of 165142203 is about 548.6381768571.

Adding to 165142203 its reverse (302241561), we get a palindrome (467383764).

The spelling of 165142203 in words is "one hundred sixty-five million, one hundred forty-two thousand, two hundred three".