306315093 has 16 divisors (see below), whose sum is σ = 491333120. Its totient is φ = 165824496.

The previous prime is 306315049. The next prime is 306315109. The reversal of 306315093 is 390513603.

It is not a de Polignac number, because 306315093 - 2⁶ = 306315029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 306315093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306315043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383455 + ... + 384252.

It is an arithmetic number, because the mean of its divisors is an integer number (30708320).

Almost surely, 2^306315093 is an apocalyptic number.

It is an amenable number.

306315093 is a deficient number, since it is larger than the sum of its proper divisors (185018027).

306315093 is a wasteful number, since it uses less digits than its factorization.

306315093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767736.

The product of its (nonzero) digits is 7290, while the sum is 30.

The square root of 306315093 is about 17501.8597011860. The cubic root of 306315093 is about 674.0976276735.

Adding to 306315093 its reverse (390513603), we get a palindrome (696828696).

The spelling of 306315093 in words is "three hundred six million, three hundred fifteen thousand, ninety-three".