12542125 has 16 divisors (see below), whose sum is σ = 15752880. Its totient is φ = 9969600.

The previous prime is 12542113. The next prime is 12542137. The reversal of 12542125 is 52124521.

It is an interprime number because it is at equal distance from previous prime (12542113) and next prime (12542137).

It can be written as a sum of positive squares in 8 ways, for example, as 7038409 + 5503716 = 2653^2 + 2346^2 .

It is not a de Polignac number, because 12542125 - 2⁵ = 12542093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12542096 and 12542105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33439 + ... + 33811.

It is an arithmetic number, because the mean of its divisors is an integer number (984555).

Almost surely, 2^12542125 is an apocalyptic number.

It is an amenable number.

12542125 is a deficient number, since it is larger than the sum of its proper divisors (3210755).

12542125 is an equidigital number, since it uses as much as digits as its factorization.

12542125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 647 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 12542125 is about 3541.4862699155. The cubic root of 12542125 is about 232.3398519446.

Adding to 12542125 its reverse (52124521), we get a palindrome (64666646).

It can be divided in two parts, 125 and 42125, that multiplied together give a palindrome (5265625).

The spelling of 12542125 in words is "twelve million, five hundred forty-two thousand, one hundred twenty-five".