302961 has 4 divisors (see below), whose sum is σ = 403952. Its totient is φ = 201972.

The previous prime is 302959. The next prime is 302969. The reversal of 302961 is 169203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 169203 = 3 ⋅56401.

It is not a de Polignac number, because 302961 - 2¹ = 302959 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (302969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50491 + ... + 50496.

It is an arithmetic number, because the mean of its divisors is an integer number (100988).

2³⁰²⁹⁶¹ is an apocalyptic number.

It is an amenable number.

302961 is a deficient number, since it is larger than the sum of its proper divisors (100991).

302961 is a wasteful number, since it uses less digits than its factorization.

302961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100990.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 302961 is about 550.4189313605. The cubic root of 302961 is about 67.1628177951.

The spelling of 302961 in words is "three hundred two thousand, nine hundred sixty-one".