3125849 has 4 divisors (see below), whose sum is σ = 3156900. Its totient is φ = 3094800.

The previous prime is 3125839. The next prime is 3125867. The reversal of 3125849 is 9485213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9485213 = 101 ⋅93913.

It can be written as a sum of positive squares in 2 ways, for example, as 2999824 + 126025 = 1732^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 3125849 - 2⁴ = 3125833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3125809) 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 3 ways as a sum of consecutive naturals, for example, 15374 + ... + 15575.

It is an arithmetic number, because the mean of its divisors is an integer number (789225).

Almost surely, 2^3125849 is an apocalyptic number.

It is an amenable number.

3125849 is a deficient number, since it is larger than the sum of its proper divisors (31051).

3125849 is a wasteful number, since it uses less digits than its factorization.

3125849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31050.

The product of its digits is 8640, while the sum is 32.

The square root of 3125849 is about 1768.0070701216. The cubic root of 3125849 is about 146.2141256641.

The spelling of 3125849 in words is "three million, one hundred twenty-five thousand, eight hundred forty-nine".