3081491 has 8 divisors (see below), whose sum is σ = 3548160. Its totient is φ = 2621448.

The previous prime is 3081479. The next prime is 3081497. The reversal of 3081491 is 1941803.

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

It is a cyclic number.

It is not a de Polignac number, because 3081491 - 2¹⁸ = 2819347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3081491.

It is not an unprimeable number, because it can be changed into a prime (3081497) 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, 611 + ... + 2556.

It is an arithmetic number, because the mean of its divisors is an integer number (443520).

Almost surely, 2^3081491 is an apocalyptic number.

3081491 is a deficient number, since it is larger than the sum of its proper divisors (466669).

3081491 is a wasteful number, since it uses less digits than its factorization.

3081491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 3081491 is about 1755.4176141306. The cubic root of 3081491 is about 145.5192009080.

The spelling of 3081491 in words is "three million, eighty-one thousand, four hundred ninety-one".