4136591 has 4 divisors (see below), whose sum is σ = 4173312. Its totient is φ = 4099872.

The previous prime is 4136581. The next prime is 4136599. The reversal of 4136591 is 1956314.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1956314 = 2 ⋅978157.

It is a cyclic number.

It is not a de Polignac number, because 4136591 - 2¹⁰ = 4135567 is a prime.

It is a super-2 number, since 2×4136591² = 34222770202562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4136599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18191 + ... + 18416.

It is an arithmetic number, because the mean of its divisors is an integer number (1043328).

Almost surely, 2^4136591 is an apocalyptic number.

4136591 is a deficient number, since it is larger than the sum of its proper divisors (36721).

4136591 is a wasteful number, since it uses less digits than its factorization.

4136591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36720.

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

The square root of 4136591 is about 2033.8611063689. The cubic root of 4136591 is about 160.5267923040.

The spelling of 4136591 in words is "four million, one hundred thirty-six thousand, five hundred ninety-one".