312226153 has 2 divisors, whose sum is σ = 312226154. Its totient is φ = 312226152.

The previous prime is 312226133. The next prime is 312226169. The reversal of 312226153 is 351622213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171400464 + 140825689 = 13092^2 + 11867^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312226153 is a prime.

It is not a weakly prime, because it can be changed into another prime (312226133) 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, 156113076 + 156113077.

It is an arithmetic number, because the mean of its divisors is an integer number (156113077).

Almost surely, 2^312226153 is an apocalyptic number.

It is an amenable number.

312226153 is a deficient number, since it is larger than the sum of its proper divisors (1).

312226153 is an equidigital number, since it uses as much as digits as its factorization.

312226153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 312226153 is about 17669.9222692122. The cubic root of 312226153 is about 678.4061235200.

Adding to 312226153 its reverse (351622213), we get a palindrome (663848366).

The spelling of 312226153 in words is "three hundred twelve million, two hundred twenty-six thousand, one hundred fifty-three".