12538755 has 12 divisors (see below), whose sum is σ = 21733920. Its totient is φ = 6687312.

The previous prime is 12538753. The next prime is 12538763. The reversal of 12538755 is 55783521.

12538755 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12538755 - 2¹ = 12538753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12538753) 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, 139275 + ... + 139364.

It is an arithmetic number, because the mean of its divisors is an integer number (1811160).

Almost surely, 2^12538755 is an apocalyptic number.

12538755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12538755 is a deficient number, since it is larger than the sum of its proper divisors (9195165).

12538755 is a wasteful number, since it uses less digits than its factorization.

12538755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278650 (or 278647 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 12538755 is about 3541.0104490103. The cubic root of 12538755 is about 232.3190406005.

The spelling of 12538755 in words is "twelve million, five hundred thirty-eight thousand, seven hundred fifty-five".