312145707 has 8 divisors (see below), whose sum is σ = 416389120. Its totient is φ = 207999720.

The previous prime is 312145703. The next prime is 312145733. The reversal of 312145707 is 707541213.

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

It is not a de Polignac number, because 312145707 - 2² = 312145703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312145703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16519 + ... + 29952.

It is an arithmetic number, because the mean of its divisors is an integer number (52048640).

Almost surely, 2^312145707 is an apocalyptic number.

312145707 is a deficient number, since it is larger than the sum of its proper divisors (104243413).

312145707 is a wasteful number, since it uses less digits than its factorization.

312145707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48713.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 312145707 is about 17667.6457684662. The cubic root of 312145707 is about 678.3478540613.

It can be divided in two parts, 3121 and 45707, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 312145707 in words is "three hundred twelve million, one hundred forty-five thousand, seven hundred seven".