12539000 has 32 divisors (see below), whose sum is σ = 29343600. Its totient is φ = 5015200.

The previous prime is 12538987. The next prime is 12539003. The reversal of 12539000 is 93521.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12539003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5270 + ... + 7269.

Almost surely, 2^12539000 is an apocalyptic number.

12539000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12539000 is an abundant number, since it is smaller than the sum of its proper divisors (16804600).

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

12539000 is a wasteful number, since it uses less digits than its factorization.

12539000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12560 (or 12546 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 12539000 is about 3541.0450434865. The cubic root of 12539000 is about 232.3205537171.

The spelling of 12539000 in words is "twelve million, five hundred thirty-nine thousand".