4133865 has 8 divisors (see below), whose sum is σ = 6614208. Its totient is φ = 2204720.

The previous prime is 4133837. The next prime is 4133869. The reversal of 4133865 is 5683314.

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

It is not a de Polignac number, because 4133865 - 2⁸ = 4133609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4133869) 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, 137781 + ... + 137810.

It is an arithmetic number, because the mean of its divisors is an integer number (826776).

Almost surely, 2^4133865 is an apocalyptic number.

It is an amenable number.

4133865 is a deficient number, since it is larger than the sum of its proper divisors (2480343).

4133865 is a wasteful number, since it uses less digits than its factorization.

4133865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275599.

The product of its digits is 8640, while the sum is 30.

The square root of 4133865 is about 2033.1908420018. The cubic root of 4133865 is about 160.4915223441.

It can be divided in two parts, 413 and 3865, that added together give a triangular number (4278 = T₉₂).

The spelling of 4133865 in words is "four million, one hundred thirty-three thousand, eight hundred sixty-five".