309052 has 6 divisors (see below), whose sum is σ = 540848. Its totient is φ = 154524.

The previous prime is 309037. The next prime is 309059. The reversal of 309052 is 250903.

309052 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309059) 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 as a sum of consecutive naturals, namely, 38628 + ... + 38635.

2³⁰⁹⁰⁵² is an apocalyptic number.

It is an amenable number.

309052 is a deficient number, since it is larger than the sum of its proper divisors (231796).

309052 is a wasteful number, since it uses less digits than its factorization.

309052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77267 (or 77265 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 309052 is about 555.9244552995. The cubic root of 309052 is about 67.6099351666.

Adding to 309052 its reverse (250903), we get a palindrome (559955).

The spelling of 309052 in words is "three hundred nine thousand, fifty-two".