312126473 has 2 divisors, whose sum is σ = 312126474. Its totient is φ = 312126472.

The previous prime is 312126439. The next prime is 312126523. The reversal of 312126473 is 374621213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224760064 + 87366409 = 14992^2 + 9347^2 .

It is an emirp because it is prime and its reverse (374621213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312126473 - 2²⁶ = 245017609 is a prime.

It is not a weakly prime, because it can be changed into another prime (312126673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156063236 + 156063237.

It is an arithmetic number, because the mean of its divisors is an integer number (156063237).

Almost surely, 2^312126473 is an apocalyptic number.

It is an amenable number.

312126473 is a deficient number, since it is larger than the sum of its proper divisors (1).

312126473 is an equidigital number, since it uses as much as digits as its factorization.

312126473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 312126473 is about 17667.1014317573. The cubic root of 312126473 is about 678.3339208133. Note that the first 3 decimals are identical.

Adding to 312126473 its reverse (374621213), we get a palindrome (686747686).

The spelling of 312126473 in words is "three hundred twelve million, one hundred twenty-six thousand, four hundred seventy-three".