554135381 has 2 divisors, whose sum is σ = 554135382. Its totient is φ = 554135380.

The previous prime is 554135341. The next prime is 554135401. The reversal of 554135381 is 183531455.

554135381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 553849156 + 286225 = 23534^2 + 535^2 .

It is a cyclic number.

It is not a de Polignac number, because 554135381 - 2⁶ = 554135317 is a prime.

It is a super-2 number, since 2×554135381² = 614132040952030322, 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 (554135341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277067690 + 277067691.

It is an arithmetic number, because the mean of its divisors is an integer number (277067691).

Almost surely, 2^554135381 is an apocalyptic number.

It is an amenable number.

554135381 is a deficient number, since it is larger than the sum of its proper divisors (1).

554135381 is an equidigital number, since it uses as much as digits as its factorization.

554135381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 35.

The square root of 554135381 is about 23540.0803099735. The cubic root of 554135381 is about 821.3696033759.

The spelling of 554135381 in words is "five hundred fifty-four million, one hundred thirty-five thousand, three hundred eighty-one".