4127381 has 2 divisors, whose sum is σ = 4127382. Its totient is φ = 4127380.

The previous prime is 4127377. The next prime is 4127393. The reversal of 4127381 is 1837214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3960100 + 167281 = 1990^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 4127381 - 2² = 4127377 is a prime.

It is a super-2 number, since 2×4127381² = 34070547838322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4127381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4124381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2063690 + 2063691.

It is an arithmetic number, because the mean of its divisors is an integer number (2063691).

Almost surely, 2^4127381 is an apocalyptic number.

It is an amenable number.

4127381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4127381 is an equidigital number, since it uses as much as digits as its factorization.

4127381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 26.

The square root of 4127381 is about 2031.5956782785. The cubic root of 4127381 is about 160.4075676929.

The spelling of 4127381 in words is "four million, one hundred twenty-seven thousand, three hundred eighty-one".