12401536 has 32 divisors (see below), whose sum is σ = 28237680. Its totient is φ = 5314560.

The previous prime is 12401533. The next prime is 12401537. The reversal of 12401536 is 63510421.

12401536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401533) 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, 6025 + ... + 7816.

Almost surely, 2^12401536 is an apocalyptic number.

12401536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12401536 is an abundant number, since it is smaller than the sum of its proper divisors (15836144).

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

12401536 is an equidigital number, since it uses as much as digits as its factorization.

12401536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13862 (or 13850 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12401536 is about 3521.5814629226. The cubic root of 12401536 is about 231.4684620709.

Adding to 12401536 its reverse (63510421), we get a palindrome (75911957).

The spelling of 12401536 in words is "twelve million, four hundred one thousand, five hundred thirty-six".