312312145 has 8 divisors (see below), whose sum is σ = 375856704. Its totient is φ = 249128304.

The previous prime is 312312103. The next prime is 312312157. The reversal of 312312145 is 541213213.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 312312145 - 2⁹ = 312311633 is a prime.

It is a Duffinian 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, 88269 + ... + 91738.

It is an arithmetic number, because the mean of its divisors is an integer number (46982088).

Almost surely, 2^312312145 is an apocalyptic number.

It is an amenable number.

312312145 is a deficient number, since it is larger than the sum of its proper divisors (63544559).

312312145 is a wasteful number, since it uses less digits than its factorization.

312312145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180359.

The product of its digits is 720, while the sum is 22.

The square root of 312312145 is about 17672.3553891381. The cubic root of 312312145 is about 678.4683990469.

Adding to 312312145 its reverse (541213213), we get a palindrome (853525358).

The spelling of 312312145 in words is "three hundred twelve million, three hundred twelve thousand, one hundred forty-five".