303149 has 16 divisors (see below), whose sum is σ = 393216. Its totient is φ = 226800.

The previous prime is 303143. The next prime is 303151. The reversal of 303149 is 941303.

It is not a de Polignac number, because 303149 - 2¹² = 299053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 303149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2324 + ... + 2450.

It is an arithmetic number, because the mean of its divisors is an integer number (24576).

2³⁰³¹⁴⁹ is an apocalyptic number.

It is an amenable number.

303149 is a deficient number, since it is larger than the sum of its proper divisors (90067).

303149 is a wasteful number, since it uses less digits than its factorization.

303149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 303149 is about 550.5896838845. The cubic root of 303149 is about 67.1767073704.

The spelling of 303149 in words is "three hundred three thousand, one hundred forty-nine".