305053133 has 16 divisors (see below), whose sum is σ = 385689600. Its totient is φ = 234351600.

The previous prime is 305053127. The next prime is 305053139. The reversal of 305053133 is 331350503.

It is an interprime number because it is at equal distance from previous prime (305053127) and next prime (305053139).

It is not a de Polignac number, because 305053133 - 2⁸ = 305052877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305053099 and 305053108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305053139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22433 + ... + 33366.

It is an arithmetic number, because the mean of its divisors is an integer number (24105600).

Almost surely, 2^305053133 is an apocalyptic number.

It is an amenable number.

305053133 is a deficient number, since it is larger than the sum of its proper divisors (80636467).

305053133 is a wasteful number, since it uses less digits than its factorization.

305053133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55888.

The product of its (nonzero) digits is 2025, while the sum is 23.

The square root of 305053133 is about 17465.7703236931. The cubic root of 305053133 is about 673.1706354336.

The spelling of 305053133 in words is "three hundred five million, fifty-three thousand, one hundred thirty-three".