6001491 has 4 divisors (see below), whose sum is σ = 8001992. Its totient is φ = 4000992.

The previous prime is 6001483. The next prime is 6001517. The reversal of 6001491 is 1941006.

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

It is not a de Polignac number, because 6001491 - 2³ = 6001483 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6001291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000246 + ... + 1000251.

It is an arithmetic number, because the mean of its divisors is an integer number (2000498).

Almost surely, 2^6001491 is an apocalyptic number.

6001491 is a deficient number, since it is larger than the sum of its proper divisors (2000501).

6001491 is a wasteful number, since it uses less digits than its factorization.

6001491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000500.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 6001491 is about 2449.7940729784. The cubic root of 6001491 is about 181.7271098522.

Adding to 6001491 its reverse (1941006), we get a palindrome (7942497).

The spelling of 6001491 in words is "six million, one thousand, four hundred ninety-one".