12533401 has 4 divisors (see below), whose sum is σ = 12603600. Its totient is φ = 12463204.

The previous prime is 12533377. The next prime is 12533441. The reversal of 12533401 is 10433521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12533401 is a prime.

It is a super-2 number, since 2×12533401² = 314172281253602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12533441) 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, 34831 + ... + 35188.

It is an arithmetic number, because the mean of its divisors is an integer number (3150900).

Almost surely, 2^12533401 is an apocalyptic number.

It is an amenable number.

12533401 is a deficient number, since it is larger than the sum of its proper divisors (70199).

12533401 is an equidigital number, since it uses as much as digits as its factorization.

12533401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70198.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12533401 is about 3540.2543693921. The cubic root of 12533401 is about 232.2859694483.

Adding to 12533401 its reverse (10433521), we get a palindrome (22966922).

The spelling of 12533401 in words is "twelve million, five hundred thirty-three thousand, four hundred one".