6157130305 has 4 divisors (see below), whose sum is σ = 7388556372. Its totient is φ = 4925704240.

The previous prime is 6157130297. The next prime is 6157130339. The reversal of 6157130305 is 5030317516.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3376888321 + 2780241984 = 58111^2 + 52728^2 .

It is not a de Polignac number, because 6157130305 - 2³ = 6157130297 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615713026 + ... + 615713035.

It is an arithmetic number, because the mean of its divisors is an integer number (1847139093).

Almost surely, 2^6157130305 is an apocalyptic number.

It is an amenable number.

6157130305 is a deficient number, since it is larger than the sum of its proper divisors (1231426067).

6157130305 is a wasteful number, since it uses less digits than its factorization.

6157130305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231426066.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 6157130305 is about 78467.3837017649. The cubic root of 6157130305 is about 1832.8465860608.

The spelling of 6157130305 in words is "six billion, one hundred fifty-seven million, one hundred thirty thousand, three hundred five".