306147 has 16 divisors (see below), whose sum is σ = 443520. Its totient is φ = 187200.

The previous prime is 306139. The next prime is 306149. The reversal of 306147 is 741603.

It is not a de Polignac number, because 306147 - 2³ = 306139 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 0 + 1 + 6⁶ + 4⁸ + 7⁵ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 306147.

It is not an unprimeable number, because it can be changed into a prime (306149) 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 15 ways as a sum of consecutive naturals, for example, 2272 + ... + 2402.

It is an arithmetic number, because the mean of its divisors is an integer number (27720).

2³⁰⁶¹⁴⁷ is an apocalyptic number.

306147 is a deficient number, since it is larger than the sum of its proper divisors (137373).

306147 is a wasteful number, since it uses less digits than its factorization.

306147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 306147 is about 553.3055213894. The cubic root of 306147 is about 67.3974299519.

The spelling of 306147 in words is "three hundred six thousand, one hundred forty-seven".