12489135 has 48 divisors (see below), whose sum is σ = 22045056. Its totient is φ = 6031872.

The previous prime is 12489119. The next prime is 12489143. The reversal of 12489135 is 53198421.

It is not a de Polignac number, because 12489135 - 2⁴ = 12489119 is a prime.

Its product of digits (8640) is a multiple of the sum of its prime divisors (135).

It is a junction number, because it is equal to n+sod(n) for n = 12489096 and 12489105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186372 + ... + 186438.

It is an arithmetic number, because the mean of its divisors is an integer number (459272).

Almost surely, 2^12489135 is an apocalyptic number.

12489135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12489135 is a deficient number, since it is larger than the sum of its proper divisors (9555921).

12489135 is a wasteful number, since it uses less digits than its factorization.

12489135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 135 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 12489135 is about 3533.9970288612. The cubic root of 12489135 is about 232.0121810390.

The spelling of 12489135 in words is "twelve million, four hundred eighty-nine thousand, one hundred thirty-five".