12507135 has 16 divisors (see below), whose sum is σ = 20340960. Its totient is φ = 6560640.

The previous prime is 12507107. The next prime is 12507137. The reversal of 12507135 is 53170521.

It is not a de Polignac number, because 12507135 - 2¹⁵ = 12474367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12507137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5920 + ... + 7749.

It is an arithmetic number, because the mean of its divisors is an integer number (1271310).

Almost surely, 2^12507135 is an apocalyptic number.

12507135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12507135 is a deficient number, since it is larger than the sum of its proper divisors (7833825).

12507135 is a wasteful number, since it uses less digits than its factorization.

12507135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13738.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 12507135 is about 3536.5428033604. The cubic root of 12507135 is about 232.1235902635.

Adding to 12507135 its reverse (53170521), we get a palindrome (65677656).

It can be divided in two parts, 1250 and 7135, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 12507135 in words is "twelve million, five hundred seven thousand, one hundred thirty-five".