6355381 has 2 divisors, whose sum is σ = 6355382. Its totient is φ = 6355380.

The previous prime is 6355373. The next prime is 6355457. The reversal of 6355381 is 1835536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5958481 + 396900 = 2441^2 + 630^2 .

It is a cyclic number.

It is not a de Polignac number, because 6355381 - 2³ = 6355373 is a prime.

It is a super-2 number, since 2×6355381² = 80781735310322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6355301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3177690 + 3177691.

It is an arithmetic number, because the mean of its divisors is an integer number (3177691).

Almost surely, 2^6355381 is an apocalyptic number.

It is an amenable number.

6355381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6355381 is an equidigital number, since it uses as much as digits as its factorization.

6355381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 31.

The square root of 6355381 is about 2520.9880999322. The cubic root of 6355381 is about 185.2310820673.

The spelling of 6355381 in words is "six million, three hundred fifty-five thousand, three hundred eighty-one".