2125867305 has 32 divisors (see below), whose sum is σ = 3437685504. Its totient is φ = 1121734656.

The previous prime is 2125867217. The next prime is 2125867309. The reversal of 2125867305 is 5037685212.

It is not a de Polignac number, because 2125867305 - 2⁸ = 2125867049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2125867309) 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 31 ways as a sum of consecutive naturals, for example, 1638417 + ... + 1639713.

It is an arithmetic number, because the mean of its divisors is an integer number (107427672).

Almost surely, 2^2125867305 is an apocalyptic number.

It is an amenable number.

2125867305 is a deficient number, since it is larger than the sum of its proper divisors (1311818199).

2125867305 is a wasteful number, since it uses less digits than its factorization.

2125867305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 2125867305 is about 46107.1285703198. The cubic root of 2125867305 is about 1285.8156801958.

The spelling of 2125867305 in words is "two billion, one hundred twenty-five million, eight hundred sixty-seven thousand, three hundred five".