538293109 has 4 divisors (see below), whose sum is σ = 539226604. Its totient is φ = 537359616.

The previous prime is 538293101. The next prime is 538293113. The reversal of 538293109 is 901392835.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 517335025 + 20958084 = 22745^2 + 4578^2 .

It is a cyclic number.

It is not a de Polignac number, because 538293109 - 2³ = 538293101 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 (538293101) 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, 465882 + ... + 467035.

It is an arithmetic number, because the mean of its divisors is an integer number (134806651).

Almost surely, 2^538293109 is an apocalyptic number.

It is an amenable number.

538293109 is a deficient number, since it is larger than the sum of its proper divisors (933495).

538293109 is an equidigital number, since it uses as much as digits as its factorization.

538293109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933494.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 538293109 is about 23201.1445622840. The cubic root of 538293109 is about 813.4663765868.

The spelling of 538293109 in words is "five hundred thirty-eight million, two hundred ninety-three thousand, one hundred nine".