12521134 has 8 divisors (see below), whose sum is σ = 19046448. Its totient is φ = 6172320.

The previous prime is 12521107. The next prime is 12521137. The reversal of 12521134 is 43112521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12521137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43947 + ... + 44230.

It is an arithmetic number, because the mean of its divisors is an integer number (2380806).

Almost surely, 2^12521134 is an apocalyptic number.

12521134 is a deficient number, since it is larger than the sum of its proper divisors (6525314).

12521134 is an equidigital number, since it uses as much as digits as its factorization.

12521134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88250.

The product of its digits is 240, while the sum is 19.

The square root of 12521134 is about 3538.5214426367. The cubic root of 12521134 is about 232.2101618225.

Adding to 12521134 its reverse (43112521), we get a palindrome (55633655).

It can be divided in two parts, 1 and 2521134, that added together give a triangular number (2521135 = T₂₂₄₅).

The spelling of 12521134 in words is "twelve million, five hundred twenty-one thousand, one hundred thirty-four".