4140161 has 4 divisors (see below), whose sum is σ = 4320192. Its totient is φ = 3960132.

The previous prime is 4140133. The next prime is 4140173. The reversal of 4140161 is 1610414.

4140161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4140161 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4140121) 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 3 ways as a sum of consecutive naturals, for example, 89981 + ... + 90026.

It is an arithmetic number, because the mean of its divisors is an integer number (1080048).

Almost surely, 2^4140161 is an apocalyptic number.

It is an amenable number.

4140161 is a deficient number, since it is larger than the sum of its proper divisors (180031).

4140161 is a wasteful number, since it uses less digits than its factorization.

4140161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180030.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 4140161 is about 2034.7385581445. The cubic root of 4140161 is about 160.5729588105.

Adding to 4140161 its reverse (1610414), we get a palindrome (5750575).

The spelling of 4140161 in words is "four million, one hundred forty thousand, one hundred sixty-one".