3112961 has 4 divisors (see below), whose sum is σ = 3120432. Its totient is φ = 3105492.

The previous prime is 3112943. The next prime is 3112973. The reversal of 3112961 is 1692113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1692113 = 173 ⋅9781.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3112961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3071 + ... + 3956.

It is an arithmetic number, because the mean of its divisors is an integer number (780108).

It is a Proth number, since it is equal to 95 ⋅ 2¹⁵ + 1 and 95 < 2¹⁵.

Almost surely, 2^3112961 is an apocalyptic number.

It is an amenable number.

3112961 is a deficient number, since it is larger than the sum of its proper divisors (7471).

3112961 is an equidigital number, since it uses as much as digits as its factorization.

3112961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7470.

The product of its digits is 324, while the sum is 23.

The square root of 3112961 is about 1764.3585236567. The cubic root of 3112961 is about 146.0128999673.

The spelling of 3112961 in words is "three million, one hundred twelve thousand, nine hundred sixty-one".