4100161 has 8 divisors (see below), whose sum is σ = 4440744. Its totient is φ = 3763200.

The previous prime is 4100137. The next prime is 4100167. The reversal of 4100161 is 1610014.

It can be written as a sum of positive squares in 4 ways, for example, as 2461761 + 1638400 = 1569^2 + 1280^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4100161 - 2¹¹ = 4098113 is a prime.

It is a super-2 number, since 2×4100161² = 33622640451842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4100167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1761 + ... + 3361.

It is an arithmetic number, because the mean of its divisors is an integer number (555093).

Almost surely, 2^4100161 is an apocalyptic number.

It is an amenable number.

4100161 is a deficient number, since it is larger than the sum of its proper divisors (340583).

4100161 is a wasteful number, since it uses less digits than its factorization.

4100161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 4100161 is about 2024.8854288576. The cubic root of 4100161 is about 160.0541613514.

Adding to 4100161 its reverse (1610014), we get a palindrome (5710175).

The spelling of 4100161 in words is "four million, one hundred thousand, one hundred sixty-one".