12315001 has 2 divisors, whose sum is σ = 12315002. Its totient is φ = 12315000.

The previous prime is 12314993. The next prime is 12315013. The reversal of 12315001 is 10051321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10627600 + 1687401 = 3260^2 + 1299^2 .

It is a cyclic number.

It is not a de Polignac number, because 12315001 - 2³ = 12314993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12315101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6157500 + 6157501.

It is an arithmetic number, because the mean of its divisors is an integer number (6157501).

Almost surely, 2^12315001 is an apocalyptic number.

It is an amenable number.

12315001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12315001 is an equidigital number, since it uses as much as digits as its factorization.

12315001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 12315001 is about 3509.2735715530. The cubic root of 12315001 is about 230.9288274829.

Adding to 12315001 its reverse (10051321), we get a palindrome (22366322).

The spelling of 12315001 in words is "twelve million, three hundred fifteen thousand, one".