312750001 has 2 divisors, whose sum is σ = 312750002. Its totient is φ = 312750000.

The previous prime is 312749999. The next prime is 312750023. The reversal of 312750001 is 100057213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239630400 + 73119601 = 15480^2 + 8551^2 .

It is a cyclic number.

It is not a de Polignac number, because 312750001 - 2¹ = 312749999 is a prime.

Together with 312749999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (312750701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156375000 + 156375001.

It is an arithmetic number, because the mean of its divisors is an integer number (156375001).

Almost surely, 2^312750001 is an apocalyptic number.

It is an amenable number.

312750001 is a deficient number, since it is larger than the sum of its proper divisors (1).

312750001 is an equidigital number, since it uses as much as digits as its factorization.

312750001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 312750001 is about 17684.7392121004. The cubic root of 312750001 is about 678.7853178117.

The spelling of 312750001 in words is "three hundred twelve million, seven hundred fifty thousand, one".