215035201 has 6 divisors (see below), whose sum is σ = 220409606. Its totient is φ = 209788800.

The previous prime is 215035169. The next prime is 215035229. The reversal of 215035201 is 102530512.

It can be written as a sum of positive squares in 3 ways, for example, as 1904400 + 213130801 = 1380^2 + 14599^2 .

It is not a de Polignac number, because 215035201 - 2⁵ = 215035169 is a prime.

It is a super-2 number, since 2×215035201² = 92480275338220802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215035291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62280 + ... + 65641.

Almost surely, 2^215035201 is an apocalyptic number.

It is an amenable number.

215035201 is a deficient number, since it is larger than the sum of its proper divisors (5374405).

215035201 is an equidigital number, since it uses as much as digits as its factorization.

215035201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128003 (or 127962 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 215035201 is about 14664.0785936246. The cubic root of 215035201 is about 599.1053342109.

Adding to 215035201 its reverse (102530512), we get a palindrome (317565713).

The spelling of 215035201 in words is "two hundred fifteen million, thirty-five thousand, two hundred one".