4135961 has 8 divisors (see below), whose sum is σ = 4275720. Its totient is φ = 3998592.

The previous prime is 4135933. The next prime is 4135987. The reversal of 4135961 is 1695314.

It can be written as a sum of positive squares in 4 ways, for example, as 1038361 + 3097600 = 1019^2 + 1760^2 .

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 4135961 - 2¹⁰ = 4134937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4135921) 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, 3335 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (534465).

Almost surely, 2^4135961 is an apocalyptic number.

It is an amenable number.

4135961 is a deficient number, since it is larger than the sum of its proper divisors (139759).

4135961 is a wasteful number, since it uses less digits than its factorization.

4135961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195.

The product of its digits is 3240, while the sum is 29.

The square root of 4135961 is about 2033.7062226389. The cubic root of 4135961 is about 160.5186425164.

The spelling of 4135961 in words is "four million, one hundred thirty-five thousand, nine hundred sixty-one".