312230141 has 2 divisors, whose sum is σ = 312230142. Its totient is φ = 312230140.

The previous prime is 312230137. The next prime is 312230159. The reversal of 312230141 is 141032213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203632900 + 108597241 = 14270^2 + 10421^2 .

It is a cyclic number.

It is not a de Polignac number, because 312230141 - 2² = 312230137 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312230111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156115070 + 156115071.

It is an arithmetic number, because the mean of its divisors is an integer number (156115071).

Almost surely, 2^312230141 is an apocalyptic number.

It is an amenable number.

312230141 is a deficient number, since it is larger than the sum of its proper divisors (1).

312230141 is an equidigital number, since it uses as much as digits as its factorization.

312230141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 312230141 is about 17670.0351159810. The cubic root of 312230141 is about 678.4090118881.

Adding to 312230141 its reverse (141032213), we get a palindrome (453262354).

The spelling of 312230141 in words is "three hundred twelve million, two hundred thirty thousand, one hundred forty-one".