547106381 has 2 divisors, whose sum is σ = 547106382. Its totient is φ = 547106380.

The previous prime is 547106323. The next prime is 547106401. The reversal of 547106381 is 183601745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527437156 + 19669225 = 22966^2 + 4435^2 .

It is a cyclic number.

It is not a de Polignac number, because 547106381 - 2²⁶ = 479997517 is a prime.

It is a super-2 number, since 2×547106381² = 598650784261834322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (547106081) 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, 273553190 + 273553191.

It is an arithmetic number, because the mean of its divisors is an integer number (273553191).

Almost surely, 2^547106381 is an apocalyptic number.

It is an amenable number.

547106381 is a deficient number, since it is larger than the sum of its proper divisors (1).

547106381 is an equidigital number, since it uses as much as digits as its factorization.

547106381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 547106381 is about 23390.3052780420. The cubic root of 547106381 is about 817.8818927284.

The spelling of 547106381 in words is "five hundred forty-seven million, one hundred six thousand, three hundred eighty-one".