538012549 has 8 divisors (see below), whose sum is σ = 574703640. Its totient is φ = 501881856.

The previous prime is 538012543. The next prime is 538012561. The reversal of 538012549 is 945210835.

It can be written as a sum of positive squares in 4 ways, for example, as 66341025 + 471671524 = 8145^2 + 21718^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 538012549 - 2¹⁵ = 537979781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538012543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138114 + ... + 141955.

It is an arithmetic number, because the mean of its divisors is an integer number (71837955).

Almost surely, 2^538012549 is an apocalyptic number.

It is an amenable number.

538012549 is a deficient number, since it is larger than the sum of its proper divisors (36691091).

538012549 is a wasteful number, since it uses less digits than its factorization.

538012549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280199.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 538012549 is about 23195.0975208125. The cubic root of 538012549 is about 813.3250249793.

The spelling of 538012549 in words is "five hundred thirty-eight million, twelve thousand, five hundred forty-nine".