4091051 has 4 divisors (see below), whose sum is σ = 4123392. Its totient is φ = 4058712.

The previous prime is 4091047. The next prime is 4091069. The reversal of 4091051 is 1501904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4091051 - 2² = 4091047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4091011) 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, 15980 + ... + 16233.

It is an arithmetic number, because the mean of its divisors is an integer number (1030848).

Almost surely, 2^4091051 is an apocalyptic number.

4091051 is a deficient number, since it is larger than the sum of its proper divisors (32341).

4091051 is a wasteful number, since it uses less digits than its factorization.

4091051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32340.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 4091051 is about 2022.6346679517. The cubic root of 4091051 is about 159.9355339251.

Adding to 4091051 its reverse (1501904), we get a palindrome (5592955).

The spelling of 4091051 in words is "four million, ninety-one thousand, fifty-one".