3120949 has 4 divisors (see below), whose sum is σ = 3361036. Its totient is φ = 2880864.

The previous prime is 3120937. The next prime is 3120973. The reversal of 3120949 is 9490213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9490213 = 281 ⋅33773.

It can be written as a sum of positive squares in 2 ways, for example, as 1456849 + 1664100 = 1207^2 + 1290^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120949 - 2⁹ = 3120437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120919) 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, 120024 + ... + 120049.

It is an arithmetic number, because the mean of its divisors is an integer number (840259).

Almost surely, 2^3120949 is an apocalyptic number.

It is an amenable number.

3120949 is a deficient number, since it is larger than the sum of its proper divisors (240087).

3120949 is a wasteful number, since it uses less digits than its factorization.

3120949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240086.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 3120949 is about 1766.6207855677. The cubic root of 3120949 is about 146.1376852150.

The spelling of 3120949 in words is "three million, one hundred twenty thousand, nine hundred forty-nine".