165142202 has 4 divisors (see below), whose sum is σ = 247713306. Its totient is φ = 82571100.

The previous prime is 165142193. The next prime is 165142247. The reversal of 165142202 is 202241561.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 137147521 + 27994681 = 11711^2 + 5291^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41285549 + ... + 41285552.

Almost surely, 2^165142202 is an apocalyptic number.

165142202 is a deficient number, since it is larger than the sum of its proper divisors (82571104).

165142202 is an equidigital number, since it uses as much as digits as its factorization.

165142202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82571103.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 165142202 is about 12850.7665919197. The cubic root of 165142202 is about 548.6381757497.

Adding to 165142202 its reverse (202241561), we get a palindrome (367383763).

The spelling of 165142202 in words is "one hundred sixty-five million, one hundred forty-two thousand, two hundred two".