4148381 has 2 divisors, whose sum is σ = 4148382. Its totient is φ = 4148380.

The previous prime is 4148351. The next prime is 4148393. The reversal of 4148381 is 1838414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3644281 + 504100 = 1909^2 + 710^2 .

It is a cyclic number.

It is not a de Polignac number, because 4148381 - 2¹⁰ = 4147357 is a prime.

It is a super-2 number, since 2×4148381² = 34418129842322, 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 (4148321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2074190 + 2074191.

It is an arithmetic number, because the mean of its divisors is an integer number (2074191).

Almost surely, 2^4148381 is an apocalyptic number.

It is an amenable number.

4148381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4148381 is an equidigital number, since it uses as much as digits as its factorization.

4148381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 29.

The square root of 4148381 is about 2036.7574720619. The cubic root of 4148381 is about 160.6791573500.

The spelling of 4148381 in words is "four million, one hundred forty-eight thousand, three hundred eighty-one".