312514243 has 2 divisors, whose sum is σ = 312514244. Its totient is φ = 312514242.

The previous prime is 312514229. The next prime is 312514253. The reversal of 312514243 is 342415213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312514243 - 2²¹ = 310417091 is a prime.

It is not a weakly prime, because it can be changed into another prime (312514253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156257121 + 156257122.

It is an arithmetic number, because the mean of its divisors is an integer number (156257122).

Almost surely, 2^312514243 is an apocalyptic number.

312514243 is a deficient number, since it is larger than the sum of its proper divisors (1).

312514243 is an equidigital number, since it uses as much as digits as its factorization.

312514243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 312514243 is about 17678.0723779489. The cubic root of 312514243 is about 678.6147137121.

Adding to 312514243 its reverse (342415213), we get a palindrome (654929456).

The spelling of 312514243 in words is "three hundred twelve million, five hundred fourteen thousand, two hundred forty-three".