538147187 has 2 divisors, whose sum is σ = 538147188. Its totient is φ = 538147186.

The previous prime is 538147177. The next prime is 538147217. The reversal of 538147187 is 781741835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 538147187 - 2¹⁰ = 538146163 is a prime.

It is not a weakly prime, because it can be changed into another prime (538147157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269073593 + 269073594.

It is an arithmetic number, because the mean of its divisors is an integer number (269073594).

Almost surely, 2^538147187 is an apocalyptic number.

538147187 is a deficient number, since it is larger than the sum of its proper divisors (1).

538147187 is an equidigital number, since it uses as much as digits as its factorization.

538147187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 44.

The square root of 538147187 is about 23197.9996335891. Note that the first 3 decimals coincide. The cubic root of 538147187 is about 813.3928643644.

The spelling of 538147187 in words is "five hundred thirty-eight million, one hundred forty-seven thousand, one hundred eighty-seven".