3120355249 has 4 divisors (see below), whose sum is σ = 3404023920. Its totient is φ = 2836686580.

The previous prime is 3120355241. The next prime is 3120355291. The reversal of 3120355249 is 9425530213.

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: 9425530213 = 11 ⋅856866383.

It is a cyclic number.

It is not a de Polignac number, because 3120355249 - 2³ = 3120355241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3120355241) 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, 141834319 + ... + 141834340.

It is an arithmetic number, because the mean of its divisors is an integer number (851005980).

Almost surely, 2^3120355249 is an apocalyptic number.

It is an amenable number.

3120355249 is a deficient number, since it is larger than the sum of its proper divisors (283668671).

3120355249 is a wasteful number, since it uses less digits than its factorization.

3120355249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283668670.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 3120355249 is about 55860.1400732222. The cubic root of 3120355249 is about 1461.2841721137.

The spelling of 3120355249 in words is "three billion, one hundred twenty million, three hundred fifty-five thousand, two hundred forty-nine".