12523802 has 4 divisors (see below), whose sum is σ = 18785706. Its totient is φ = 6261900.

The previous prime is 12523801. The next prime is 12523811. The reversal of 12523802 is 20832521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20832521 = 73 ⋅285377.

It can be written as a sum of positive squares in only one way, i.e., 6911641 + 5612161 = 2629^2 + 2369^2 .

It is not an unprimeable number, because it can be changed into a prime (12523801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3130949 + ... + 3130952.

Almost surely, 2^12523802 is an apocalyptic number.

12523802 is a deficient number, since it is larger than the sum of its proper divisors (6261904).

12523802 is an equidigital number, since it uses as much as digits as its factorization.

12523802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6261903.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 12523802 is about 3538.8984161742. The cubic root of 12523802 is about 232.2266537449.

The spelling of 12523802 in words is "twelve million, five hundred twenty-three thousand, eight hundred two".