305131214 has 8 divisors (see below), whose sum is σ = 473479560. Its totient is φ = 147304696.

The previous prime is 305131207. The next prime is 305131223. The reversal of 305131214 is 412131503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×305131214² = 186210115514227592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2630384 + ... + 2630499.

It is an arithmetic number, because the mean of its divisors is an integer number (59184945).

Almost surely, 2^305131214 is an apocalyptic number.

305131214 is a deficient number, since it is larger than the sum of its proper divisors (168348346).

305131214 is a wasteful number, since it uses less digits than its factorization.

305131214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260914.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 305131214 is about 17468.0054385153. The cubic root of 305131214 is about 673.2280651584.

Adding to 305131214 its reverse (412131503), we get a palindrome (717262717).

The spelling of 305131214 in words is "three hundred five million, one hundred thirty-one thousand, two hundred fourteen".