3158309725 has 24 divisors (see below), whose sum is σ = 4169686248. Its totient is φ = 2364825600.

The previous prime is 3158309719. The next prime is 3158309731. The reversal of 3158309725 is 5279038513.

It is an interprime number because it is at equal distance from previous prime (3158309719) and next prime (3158309731).

It can be written as a sum of positive squares in 12 ways, for example, as 2125394404 + 1032915321 = 46102^2 + 32139^2 .

It is not a de Polignac number, because 3158309725 - 2⁷ = 3158309597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56397 + ... + 97453.

It is an arithmetic number, because the mean of its divisors is an integer number (173736927).

Almost surely, 2^3158309725 is an apocalyptic number.

It is an amenable number.

3158309725 is a deficient number, since it is larger than the sum of its proper divisors (1011376523).

3158309725 is a wasteful number, since it uses less digits than its factorization.

3158309725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41265 (or 41260 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 3158309725 is about 56198.8409577991. The cubic root of 3158309725 is about 1467.1850932153.

The spelling of 3158309725 in words is "three billion, one hundred fifty-eight million, three hundred nine thousand, seven hundred twenty-five".