3112491 has 4 divisors (see below), whose sum is σ = 4149992. Its totient is φ = 2074992.

The previous prime is 3112489. The next prime is 3112507. The reversal of 3112491 is 1942113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1942113 = 3 ⋅647371.

It is not a de Polignac number, because 3112491 - 2¹ = 3112489 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112441) 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, 518746 + ... + 518751.

It is an arithmetic number, because the mean of its divisors is an integer number (1037498).

Almost surely, 2^3112491 is an apocalyptic number.

3112491 is a deficient number, since it is larger than the sum of its proper divisors (1037501).

3112491 is a wasteful number, since it uses less digits than its factorization.

3112491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037500.

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

The square root of 3112491 is about 1764.2253257450. The cubic root of 3112491 is about 146.0055511744.

The spelling of 3112491 in words is "three million, one hundred twelve thousand, four hundred ninety-one".