12527381 has 2 divisors, whose sum is σ = 12527382. Its totient is φ = 12527380.

The previous prime is 12527377. The next prime is 12527393. The reversal of 12527381 is 18372521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11458225 + 1069156 = 3385^2 + 1034^2 .

It is an emirp because it is prime and its reverse (18372521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12527381 - 2² = 12527377 is a prime.

It is a super-2 number, since 2×12527381² = 313870549438322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12521381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6263690 + 6263691.

It is an arithmetic number, because the mean of its divisors is an integer number (6263691).

Almost surely, 2^12527381 is an apocalyptic number.

It is an amenable number.

12527381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12527381 is an equidigital number, since it uses as much as digits as its factorization.

12527381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

The square root of 12527381 is about 3539.4040458812. The cubic root of 12527381 is about 232.2487732268.

The spelling of 12527381 in words is "twelve million, five hundred twenty-seven thousand, three hundred eighty-one".