305134 has 4 divisors (see below), whose sum is σ = 457704. Its totient is φ = 152566.

The previous prime is 305131. The next prime is 305143. The reversal of 305134 is 431503.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76282 + ... + 76285.

It is an arithmetic number, because the mean of its divisors is an integer number (114426).

2³⁰⁵¹³⁴ is an apocalyptic number.

305134 is a deficient number, since it is larger than the sum of its proper divisors (152570).

305134 is a wasteful number, since it uses less digits than its factorization.

305134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152569.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 305134 is about 552.3893554369. The cubic root of 305134 is about 67.3230114121.

Adding to 305134 its reverse (431503), we get a palindrome (736637).

The spelling of 305134 in words is "three hundred five thousand, one hundred thirty-four".