312150243 has 16 divisors (see below), whose sum is σ = 442933920. Its totient is φ = 194858496.

The previous prime is 312150239. The next prime is 312150257. The reversal of 312150243 is 342051213.

It is not a de Polignac number, because 312150243 - 2² = 312150239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312150143) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5488 + ... + 25581.

It is an arithmetic number, because the mean of its divisors is an integer number (27683370).

Almost surely, 2^312150243 is an apocalyptic number.

312150243 is a deficient number, since it is larger than the sum of its proper divisors (130783677).

312150243 is a wasteful number, since it uses less digits than its factorization.

312150243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31286.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 312150243 is about 17667.7741382439. The cubic root of 312150243 is about 678.3511398889.

The spelling of 312150243 in words is "three hundred twelve million, one hundred fifty thousand, two hundred forty-three".