312215053 has 2 divisors, whose sum is σ = 312215054. Its totient is φ = 312215052.

The previous prime is 312215039. The next prime is 312215063. The reversal of 312215053 is 350512213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303700329 + 8514724 = 17427^2 + 2918^2 .

It is a cyclic number.

It is not a de Polignac number, because 312215053 - 2⁹ = 312214541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312215023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156107526 + 156107527.

It is an arithmetic number, because the mean of its divisors is an integer number (156107527).

Almost surely, 2^312215053 is an apocalyptic number.

It is an amenable number.

312215053 is a deficient number, since it is larger than the sum of its proper divisors (1).

312215053 is an equidigital number, since it uses as much as digits as its factorization.

312215053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 312215053 is about 17669.6081733580. The cubic root of 312215053 is about 678.3980840513.

Adding to 312215053 its reverse (350512213), we get a palindrome (662727266).

The spelling of 312215053 in words is "three hundred twelve million, two hundred fifteen thousand, fifty-three".