306126 has 16 divisors (see below), whose sum is σ = 680400. Its totient is φ = 102024.

The previous prime is 306121. The next prime is 306133. The reversal of 306126 is 621603.

It is a happy number.

306126 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 306099 and 306108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306121) by changing a digit.

306126 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 2781 + ... + 2888.

It is an arithmetic number, because the mean of its divisors is an integer number (42525).

2³⁰⁶¹²⁶ is an apocalyptic number.

306126 is an abundant number, since it is smaller than the sum of its proper divisors (374274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

306126 is a wasteful number, since it uses less digits than its factorization.

306126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680 (or 5674 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 306126 is about 553.2865442065. The cubic root of 306126 is about 67.3958888857.

Adding to 306126 its reverse (621603), we get a palindrome (927729).

The spelling of 306126 in words is "three hundred six thousand, one hundred twenty-six".