215245027001 has 2 divisors, whose sum is σ = 215245027002. Its totient is φ = 215245027000.

The previous prime is 215245026973. The next prime is 215245027037. The reversal of 215245027001 is 100720542512.

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., 208552968976 + 6692058025 = 456676^2 + 81805^2 .

It is a cyclic number.

It is not a de Polignac number, because 215245027001 - 2³⁰ = 214171285177 is a prime.

It is a super-2 number, since 2×215245027001² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (215245027601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107622513500 + 107622513501.

It is an arithmetic number, because the mean of its divisors is an integer number (107622513501).

Almost surely, 2^215245027001 is an apocalyptic number.

It is an amenable number.

215245027001 is a deficient number, since it is larger than the sum of its proper divisors (1).

215245027001 is an equidigital number, since it uses as much as digits as its factorization.

215245027001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 29.

Adding to 215245027001 its reverse (100720542512), we get a palindrome (315965569513).

The spelling of 215245027001 in words is "two hundred fifteen billion, two hundred forty-five million, twenty-seven thousand, one".