312140302 has 8 divisors (see below), whose sum is σ = 483314112. Its totient is φ = 151035600.

The previous prime is 312140299. The next prime is 312140317. The reversal of 312140302 is 203041213.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2517199 + ... + 2517322.

It is an arithmetic number, because the mean of its divisors is an integer number (60414264).

Almost surely, 2^312140302 is an apocalyptic number.

312140302 is a deficient number, since it is larger than the sum of its proper divisors (171173810).

312140302 is a wasteful number, since it uses less digits than its factorization.

312140302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5034554.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 312140302 is about 17667.4928045832. The cubic root of 312140302 is about 678.3439386982.

Adding to 312140302 its reverse (203041213), we get a palindrome (515181515).

The spelling of 312140302 in words is "three hundred twelve million, one hundred forty thousand, three hundred two".