12523401 has 12 divisors (see below), whose sum is σ = 19734000. Its totient is φ = 7589880.

The previous prime is 12523393. The next prime is 12523417. The reversal of 12523401 is 10432521.

It is not a de Polignac number, because 12523401 - 2³ = 12523393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12523421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63151 + ... + 63348.

It is an arithmetic number, because the mean of its divisors is an integer number (1644500).

Almost surely, 2^12523401 is an apocalyptic number.

12523401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12523401 is a deficient number, since it is larger than the sum of its proper divisors (7210599).

12523401 is a wasteful number, since it uses less digits than its factorization.

12523401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126516 (or 126513 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12523401 is about 3538.8417596722. The cubic root of 12523401 is about 232.2241751610.

Adding to 12523401 its reverse (10432521), we get a palindrome (22955922).

The spelling of 12523401 in words is "twelve million, five hundred twenty-three thousand, four hundred one".