547221137 has 4 divisors (see below), whose sum is σ = 560568036. Its totient is φ = 533874240.

The previous prime is 547221127. The next prime is 547221149. The reversal of 547221137 is 731122745.

547221137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731122745 = 5 ⋅146224549.

It can be written as a sum of positive squares in 2 ways, for example, as 295014976 + 252206161 = 17176^2 + 15881^2 .

It is a cyclic number.

It is not a de Polignac number, because 547221137 - 2⁴ = 547221121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (547221127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6673388 + ... + 6673469.

It is an arithmetic number, because the mean of its divisors is an integer number (140142009).

Almost surely, 2^547221137 is an apocalyptic number.

It is an amenable number.

547221137 is a deficient number, since it is larger than the sum of its proper divisors (13346899).

547221137 is a wasteful number, since it uses less digits than its factorization.

547221137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13346898.

The product of its digits is 11760, while the sum is 32.

The square root of 547221137 is about 23392.7582170209. The cubic root of 547221137 is about 817.9390725240.

The spelling of 547221137 in words is "five hundred forty-seven million, two hundred twenty-one thousand, one hundred thirty-seven".