538143169 has 8 divisors (see below), whose sum is σ = 557006760. Its totient is φ = 519300096.

The previous prime is 538143157. The next prime is 538143191. The reversal of 538143169 is 961341835.

It can be written as a sum of positive squares in 4 ways, for example, as 2822400 + 535320769 = 1680^2 + 23137^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538143169 is a prime.

It is a super-2 number, since 2×538143169² = 579196140682725122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538143469) 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, 64417 + ... + 72289.

It is an arithmetic number, because the mean of its divisors is an integer number (69625845).

Almost surely, 2^538143169 is an apocalyptic number.

It is an amenable number.

538143169 is a deficient number, since it is larger than the sum of its proper divisors (18863591).

538143169 is a wasteful number, since it uses less digits than its factorization.

538143169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10259.

The product of its digits is 77760, while the sum is 40.

The square root of 538143169 is about 23197.9130311328. The cubic root of 538143169 is about 813.3908399984.

The spelling of 538143169 in words is "five hundred thirty-eight million, one hundred forty-three thousand, one hundred sixty-nine".