10215001 has 2 divisors, whose sum is σ = 10215002. Its totient is φ = 10215000.

The previous prime is 10214959. The next prime is 10215017. The reversal of 10215001 is 10051201.

It is a happy number.

10215001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9759376 + 455625 = 3124^2 + 675^2 .

It is a cyclic number.

It is not a de Polignac number, because 10215001 - 2¹¹ = 10212953 is a prime.

It is not a weakly prime, because it can be changed into another prime (10215031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5107500 + 5107501.

It is an arithmetic number, because the mean of its divisors is an integer number (5107501).

Almost surely, 2^10215001 is an apocalyptic number.

It is an amenable number.

10215001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10215001 is an equidigital number, since it uses as much as digits as its factorization.

10215001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 10215001 is about 3196.0915193405. The cubic root of 10215001 is about 216.9765525006.

Adding to 10215001 its reverse (10051201), we get a palindrome (20266202).

The spelling of 10215001 in words is "ten million, two hundred fifteen thousand, one".