306146 has 4 divisors (see below), whose sum is σ = 459222. Its totient is φ = 153072.

The previous prime is 306139. The next prime is 306149. The reversal of 306146 is 641603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 290521 + 15625 = 539^2 + 125^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 306146.

It is not an unprimeable number, because it can be changed into a prime (306149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76535 + ... + 76538.

2³⁰⁶¹⁴⁶ is an apocalyptic number.

306146 is a deficient number, since it is larger than the sum of its proper divisors (153076).

306146 is a wasteful number, since it uses less digits than its factorization.

306146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153075.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 306146 is about 553.3046177288. The cubic root of 306146 is about 67.3973565694.

Adding to 306146 its reverse (641603), we get a palindrome (947749).

The spelling of 306146 in words is "three hundred six thousand, one hundred forty-six".