305613125 has 10 divisors (see below), whose sum is σ = 381894942. Its totient is φ = 244490000.

The previous prime is 305613109. The next prime is 305613127. The reversal of 305613125 is 521316503.

It can be written as a sum of positive squares in 5 ways, for example, as 132664324 + 172948801 = 11518^2 + 13151^2 .

It is not a de Polignac number, because 305613125 - 2⁴ = 305613109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305613094 and 305613103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305613127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 243866 + ... + 245115.

Almost surely, 2^305613125 is an apocalyptic number.

It is an amenable number.

305613125 is a deficient number, since it is larger than the sum of its proper divisors (76281817).

305613125 is an frugal number, since it uses more digits than its factorization.

305613125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489001 (or 488986 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 305613125 is about 17481.7941012929. The cubic root of 305613125 is about 673.5823011340.

Adding to 305613125 its reverse (521316503), we get a palindrome (826929628).

The spelling of 305613125 in words is "three hundred five million, six hundred thirteen thousand, one hundred twenty-five".