12701538 has 24 divisors (see below), whose sum is σ = 28969200. Its totient is φ = 4010904.

The previous prime is 12701531. The next prime is 12701569. The reversal of 12701538 is 83510721.

12701538 is a `hidden beast` number, since 127 + 0 + 1 + 538 = 666.

12701538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12701538² = 322658135130888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12701531) 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, 18228 + ... + 18911.

It is an arithmetic number, because the mean of its divisors is an integer number (1207050).

Almost surely, 2^12701538 is an apocalyptic number.

12701538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12701538 is an abundant number, since it is smaller than the sum of its proper divisors (16267662).

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

12701538 is a wasteful number, since it uses less digits than its factorization.

12701538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37166 (or 37163 counting only the distinct ones).

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

The square root of 12701538 is about 3563.9217163120. The cubic root of 12701538 is about 233.3200731694.

The spelling of 12701538 in words is "twelve million, seven hundred one thousand, five hundred thirty-eight".