312142065 has 8 divisors (see below), whose sum is σ = 499427328. Its totient is φ = 166475760.

The previous prime is 312142043. The next prime is 312142093. The reversal of 312142065 is 560241213.

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

It is not a de Polignac number, because 312142065 - 2¹⁶ = 312076529 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, 10404721 + ... + 10404750.

It is an arithmetic number, because the mean of its divisors is an integer number (62428416).

Almost surely, 2^312142065 is an apocalyptic number.

It is an amenable number.

312142065 is a deficient number, since it is larger than the sum of its proper divisors (187285263).

312142065 is a wasteful number, since it uses less digits than its factorization.

312142065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20809479.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 312142065 is about 17667.5426984060. The cubic root of 312142065 is about 678.3452158142.

Adding to 312142065 its reverse (560241213), we get a palindrome (872383278).

The spelling of 312142065 in words is "three hundred twelve million, one hundred forty-two thousand, sixty-five".