311252345 has 8 divisors (see below), whose sum is σ = 373629120. Its totient is φ = 248917680.

The previous prime is 311252323. The next prime is 311252387. The reversal of 311252345 is 543252113.

It is a happy number.

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

It is not a de Polignac number, because 311252345 - 2⁸ = 311252089 is a prime.

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, 9050 + ... + 26540.

It is an arithmetic number, because the mean of its divisors is an integer number (46703640).

Almost surely, 2^311252345 is an apocalyptic number.

It is an amenable number.

311252345 is a deficient number, since it is larger than the sum of its proper divisors (62376775).

311252345 is a wasteful number, since it uses less digits than its factorization.

311252345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21055.

The product of its digits is 3600, while the sum is 26.

The square root of 311252345 is about 17642.3452239208. The cubic root of 311252345 is about 677.7000911337.

The spelling of 311252345 in words is "three hundred eleven million, two hundred fifty-two thousand, three hundred forty-five".