547122381 has 16 divisors (see below), whose sum is σ = 812703360. Its totient is φ = 325080000.

The previous prime is 547122349. The next prime is 547122391. The reversal of 547122381 is 183221745.

It is not a de Polignac number, because 547122381 - 2⁵ = 547122349 is a prime.

It is a super-2 number, since 2×547122381² = 598685799582218322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (547122311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240745 + ... + 243006.

It is an arithmetic number, because the mean of its divisors is an integer number (50793960).

Almost surely, 2^547122381 is an apocalyptic number.

It is an amenable number.

547122381 is a deficient number, since it is larger than the sum of its proper divisors (265580979).

547122381 is a wasteful number, since it uses less digits than its factorization.

547122381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483796.

The product of its digits is 13440, while the sum is 33.

The square root of 547122381 is about 23390.6472975846. The cubic root of 547122381 is about 817.8898655732.

The spelling of 547122381 in words is "five hundred forty-seven million, one hundred twenty-two thousand, three hundred eighty-one".