302149 has 4 divisors (see below), whose sum is σ = 303264. Its totient is φ = 301036.

The previous prime is 302143. The next prime is 302167. The reversal of 302149 is 941203.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 941203 = 19 ⋅49537.

It is a cyclic number.

It is not a de Polignac number, because 302149 - 2¹³ = 293957 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 (302143) 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, 144 + ... + 790.

It is an arithmetic number, because the mean of its divisors is an integer number (75816).

2³⁰²¹⁴⁹ is an apocalyptic number.

It is an amenable number.

302149 is a deficient number, since it is larger than the sum of its proper divisors (1115).

302149 is an equidigital number, since it uses as much as digits as its factorization.

302149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 302149 is about 549.6808164744. The cubic root of 302149 is about 67.1027605561.

The spelling of 302149 in words is "three hundred two thousand, one hundred forty-nine".