312120245 has 8 divisors (see below), whose sum is σ = 386626560. Its totient is φ = 241641360.

The previous prime is 312120229. The next prime is 312120251. The reversal of 312120245 is 542021213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312120245 - 2⁴ = 312120229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006685 + ... + 1006994.

It is an arithmetic number, because the mean of its divisors is an integer number (48328320).

Almost surely, 2^312120245 is an apocalyptic number.

It is an amenable number.

312120245 is a deficient number, since it is larger than the sum of its proper divisors (74506315).

312120245 is a wasteful number, since it uses less digits than its factorization.

312120245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013715.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 312120245 is about 17666.9251710647. The cubic root of 312120245 is about 678.3294090826.

Adding to 312120245 its reverse (542021213), we get a palindrome (854141458).

The spelling of 312120245 in words is "three hundred twelve million, one hundred twenty thousand, two hundred forty-five".