547139069 has 4 divisors (see below), whose sum is σ = 554064960. Its totient is φ = 540213180.

The previous prime is 547139063. The next prime is 547139081. The reversal of 547139069 is 960931745.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 547139069 - 2¹⁶ = 547073533 is a prime.

It is a super-2 number, since 2×547139069² = 598722321652373522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (547139063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3462827 + ... + 3462984.

It is an arithmetic number, because the mean of its divisors is an integer number (138516240).

Almost surely, 2^547139069 is an apocalyptic number.

It is an amenable number.

547139069 is a deficient number, since it is larger than the sum of its proper divisors (6925891).

547139069 is an equidigital number, since it uses as much as digits as its factorization.

547139069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6925890.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 547139069 is about 23391.0040186393. The cubic root of 547139069 is about 817.8981810846.

The spelling of 547139069 in words is "five hundred forty-seven million, one hundred thirty-nine thousand, sixty-nine".