312742127 has 2 divisors, whose sum is σ = 312742128. Its totient is φ = 312742126.

The previous prime is 312742057. The next prime is 312742163. The reversal of 312742127 is 721247213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312742127 - 2²² = 308547823 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312742127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312741127) 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 as a sum of consecutive naturals, namely, 156371063 + 156371064.

It is an arithmetic number, because the mean of its divisors is an integer number (156371064).

Almost surely, 2^312742127 is an apocalyptic number.

312742127 is a deficient number, since it is larger than the sum of its proper divisors (1).

312742127 is an equidigital number, since it uses as much as digits as its factorization.

312742127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 29.

The square root of 312742127 is about 17684.5165893784. The cubic root of 312742127 is about 678.7796212485.

It can be divided in two parts, 3127 and 42127, that added together give a palindrome (45254).

The spelling of 312742127 in words is "three hundred twelve million, seven hundred forty-two thousand, one hundred twenty-seven".