4101491 has 2 divisors, whose sum is σ = 4101492. Its totient is φ = 4101490.

The previous prime is 4101481. The next prime is 4101527. The reversal of 4101491 is 1941014.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4101491 - 2¹⁸ = 3839347 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4101401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2050745 + 2050746.

It is an arithmetic number, because the mean of its divisors is an integer number (2050746).

Almost surely, 2^4101491 is an apocalyptic number.

4101491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4101491 is an equidigital number, since it uses as much as digits as its factorization.

4101491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 4101491 is about 2025.2138158723. The cubic root of 4101491 is about 160.0714654704.

The spelling of 4101491 in words is "four million, one hundred one thousand, four hundred ninety-one".