305029136 has 20 divisors (see below), whose sum is σ = 591995964. Its totient is φ = 152256000.

The previous prime is 305029133. The next prime is 305029139. The reversal of 305029136 is 631920503.

It is an interprime number because it is at equal distance from previous prime (305029133) and next prime (305029139).

It can be written as a sum of positive squares in 2 ways, for example, as 115691536 + 189337600 = 10756^2 + 13760^2 .

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 305029099 and 305029108.

It is not an unprimeable number, because it can be changed into a prime (305029133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6245 + ... + 25476.

Almost surely, 2^305029136 is an apocalyptic number.

It is an amenable number.

305029136 is a deficient number, since it is larger than the sum of its proper divisors (286966828).

305029136 is a wasteful number, since it uses less digits than its factorization.

305029136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32330 (or 32324 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 305029136 is about 17465.0833379059. The cubic root of 305029136 is about 673.1529833182.

Adding to 305029136 its reverse (631920503), we get a palindrome (936949639).

The spelling of 305029136 in words is "three hundred five million, twenty-nine thousand, one hundred thirty-six".