312308153 has 2 divisors, whose sum is σ = 312308154. Its totient is φ = 312308152.

The previous prime is 312308141. The next prime is 312308159. The reversal of 312308153 is 351803213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236913664 + 75394489 = 15392^2 + 8683^2 .

It is an emirp because it is prime and its reverse (351803213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312308153 is a prime.

It is not a weakly prime, because it can be changed into another prime (312308159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156154076 + 156154077.

It is an arithmetic number, because the mean of its divisors is an integer number (156154077).

Almost surely, 2^312308153 is an apocalyptic number.

It is an amenable number.

312308153 is a deficient number, since it is larger than the sum of its proper divisors (1).

312308153 is an equidigital number, since it uses as much as digits as its factorization.

312308153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 312308153 is about 17672.2424440137. The cubic root of 312308153 is about 678.4655082879.

The spelling of 312308153 in words is "three hundred twelve million, three hundred eight thousand, one hundred fifty-three".