4161261 has 8 divisors (see below), whose sum is σ = 5975200. Its totient is φ = 2560752.

The previous prime is 4161257. The next prime is 4161263. The reversal of 4161261 is 1621614.

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

It is not a de Polignac number, because 4161261 - 2² = 4161257 is a prime.

It is a super-2 number, since 2×4161261² = 34632186220242, which contains 22 as substring.

It is a Duffinian number.

4161261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4161263) 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, 53311 + ... + 53388.

It is an arithmetic number, because the mean of its divisors is an integer number (746900).

Almost surely, 2^4161261 is an apocalyptic number.

It is an amenable number.

4161261 is a deficient number, since it is larger than the sum of its proper divisors (1813939).

4161261 is a wasteful number, since it uses less digits than its factorization.

4161261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106715.

The product of its digits is 288, while the sum is 21.

The square root of 4161261 is about 2039.9169100726. The cubic root of 4161261 is about 160.8452791351.

Adding to 4161261 its reverse (1621614), we get a palindrome (5782875).

The spelling of 4161261 in words is "four million, one hundred sixty-one thousand, two hundred sixty-one".