4161538 has 8 divisors (see below), whose sum is σ = 6411132. Its totient is φ = 2024496.

The previous prime is 4161527. The next prime is 4161539. The reversal of 4161538 is 8351614.

It can be written as a sum of positive squares in 2 ways, for example, as 3908529 + 253009 = 1977^2 + 503^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4161539) 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, 28045 + ... + 28192.

Almost surely, 2^4161538 is an apocalyptic number.

4161538 is a deficient number, since it is larger than the sum of its proper divisors (2249594).

4161538 is a wasteful number, since it uses less digits than its factorization.

4161538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56276.

The product of its digits is 2880, while the sum is 28.

The square root of 4161538 is about 2039.9848038650. The cubic root of 4161538 is about 160.8488480176.

The spelling of 4161538 in words is "four million, one hundred sixty-one thousand, five hundred thirty-eight".