3120245 has 4 divisors (see below), whose sum is σ = 3744300. Its totient is φ = 2496192.

The previous prime is 3120233. The next prime is 3120253. The reversal of 3120245 is 5420213.

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 1825201 + 1295044 = 1351^2 + 1138^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120245 - 2¹² = 3116149 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312020 + ... + 312029.

It is an arithmetic number, because the mean of its divisors is an integer number (936075).

Almost surely, 2^3120245 is an apocalyptic number.

It is an amenable number.

3120245 is a deficient number, since it is larger than the sum of its proper divisors (624055).

3120245 is an equidigital number, since it uses as much as digits as its factorization.

3120245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624054.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 3120245 is about 1766.4215238725. The cubic root of 3120245 is about 146.1266961785.

Adding to 3120245 its reverse (5420213), we get a palindrome (8540458).

Subtracting 3120245 from its reverse (5420213), we obtain a cube (2299968 = 132³).

The spelling of 3120245 in words is "three million, one hundred twenty thousand, two hundred forty-five".