3138125 has 10 divisors (see below), whose sum is σ = 3922182. Its totient is φ = 2510000.

The previous prime is 3138103. The next prime is 3138127. The reversal of 3138125 is 5218313.

It can be written as a sum of positive squares in 5 ways, for example, as 568516 + 2569609 = 754^2 + 1603^2 .

It is not a de Polignac number, because 3138125 - 2¹² = 3134029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3138125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138127) 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, 1886 + ... + 3135.

Almost surely, 2^3138125 is an apocalyptic number.

It is an amenable number.

3138125 is a deficient number, since it is larger than the sum of its proper divisors (784057).

3138125 is an frugal number, since it uses more digits than its factorization.

3138125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041 (or 5026 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 3138125 is about 1771.4753738057. The cubic root of 3138125 is about 146.4052822653.

The spelling of 3138125 in words is "three million, one hundred thirty-eight thousand, one hundred twenty-five".