165146303 has 4 divisors (see below), whose sum is σ = 188738640. Its totient is φ = 141553968.

The previous prime is 165146299. The next prime is 165146339. The reversal of 165146303 is 303641561.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 165146303 - 2² = 165146299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165145303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11796158 + ... + 11796171.

It is an arithmetic number, because the mean of its divisors is an integer number (47184660).

Almost surely, 2^165146303 is an apocalyptic number.

165146303 is a deficient number, since it is larger than the sum of its proper divisors (23592337).

165146303 is an equidigital number, since it uses as much as digits as its factorization.

165146303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23592336.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 165146303 is about 12850.9261533945. The cubic root of 165146303 is about 548.6427171823.

Adding to 165146303 its reverse (303641561), we get a palindrome (468787864).

The spelling of 165146303 in words is "one hundred sixty-five million, one hundred forty-six thousand, three hundred three".