12538071 has 60 divisors (see below), whose sum is σ = 23560152. Its totient is φ = 6613488.

The previous prime is 12538033. The next prime is 12538073. The reversal of 12538071 is 17083521.

It is not a de Polignac number, because 12538071 - 2¹¹ = 12536023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12538073) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 964461 + ... + 964473.

Almost surely, 2^12538071 is an apocalyptic number.

12538071 is a deficient number, since it is larger than the sum of its proper divisors (11022081).

12538071 is an frugal number, since it uses more digits than its factorization.

12538071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 12538071 is about 3540.9138650919. The cubic root of 12538071 is about 232.3148161217.

The spelling of 12538071 in words is "twelve million, five hundred thirty-eight thousand, seventy-one".