3120755245 has 4 divisors (see below), whose sum is σ = 3744906300. Its totient is φ = 2496604192.

The previous prime is 3120755243. The next prime is 3120755251. The reversal of 3120755245 is 5425570213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1567922409 + 1552832836 = 39597^2 + 39406^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120755245 - 2¹ = 3120755243 is a prime.

It is a super-2 number, since 2×3120755245² = 19478226598390020050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3120755245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120755243) 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, 312075520 + ... + 312075529.

It is an arithmetic number, because the mean of its divisors is an integer number (936226575).

Almost surely, 2^3120755245 is an apocalyptic number.

It is an amenable number.

3120755245 is a deficient number, since it is larger than the sum of its proper divisors (624151055).

3120755245 is an equidigital number, since it uses as much as digits as its factorization.

3120755245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624151054.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 3120755245 is about 55863.7202932279. The cubic root of 3120755245 is about 1461.3466097534.

The spelling of 3120755245 in words is "three billion, one hundred twenty million, seven hundred fifty-five thousand, two hundred forty-five".