12509076 has 36 divisors (see below), whose sum is σ = 31014368. Its totient is φ = 3923328.

The previous prime is 12509009. The next prime is 12509083. The reversal of 12509076 is 67090521.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1665 + ... + 5271.

Almost surely, 2^12509076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12509076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15507184).

12509076 is an abundant number, since it is smaller than the sum of its proper divisors (18505292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12509076 is a wasteful number, since it uses less digits than its factorization.

12509076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648 (or 3629 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 12509076 is about 3536.8172132583. The cubic root of 12509076 is about 232.1355975053.

Adding to 12509076 its reverse (67090521), we get a palindrome (79599597).

The spelling of 12509076 in words is "twelve million, five hundred nine thousand, seventy-six".