305235130 has 16 divisors (see below), whose sum is σ = 554864904. Its totient is φ = 120884800.

The previous prime is 305235079. The next prime is 305235131. The reversal of 305235130 is 31532503.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 305165961 + 69169 = 17469^2 + 263^2 .

It is a super-2 number, since 2×305235130² = 186336969172233800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (305235131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150097 + ... + 152116.

Almost surely, 2^305235130 is an apocalyptic number.

305235130 is a deficient number, since it is larger than the sum of its proper divisors (249629774).

305235130 is a wasteful number, since it uses less digits than its factorization.

305235130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302321.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 305235130 is about 17470.9796519829. The cubic root of 305235130 is about 673.3044817121.

Adding to 305235130 its reverse (31532503), we get a palindrome (336767633).

It can be divided in two parts, 30523 and 5130, that added together give a palindrome (35653).

The spelling of 305235130 in words is "three hundred five million, two hundred thirty-five thousand, one hundred thirty".