538869165 has 16 divisors (see below), whose sum is σ = 907569600. Its totient is φ = 272270592.

The previous prime is 538869161. The next prime is 538869167. The reversal of 538869165 is 561968835.

It is not a de Polignac number, because 538869165 - 2² = 538869161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538869161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 945100 + ... + 945669.

It is an arithmetic number, because the mean of its divisors is an integer number (56723100).

Almost surely, 2^538869165 is an apocalyptic number.

It is an amenable number.

538869165 is a deficient number, since it is larger than the sum of its proper divisors (368700435).

538869165 is a wasteful number, since it uses less digits than its factorization.

538869165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890796.

The product of its digits is 1555200, while the sum is 51.

The square root of 538869165 is about 23213.5556302778. Note that the first 3 decimals coincide. The cubic root of 538869165 is about 813.7564509719.

The spelling of 538869165 in words is "five hundred thirty-eight million, eight hundred sixty-nine thousand, one hundred sixty-five".