2115604201 has 8 divisors (see below), whose sum is σ = 2200653000. Its totient is φ = 2031361920.

The previous prime is 2115604199. The next prime is 2115604213. The reversal of 2115604201 is 1024065112.

It can be written as a sum of positive squares in 4 ways, for example, as 104530176 + 2011074025 = 10224^2 + 44845^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2115604201 - 2¹ = 2115604199 is a prime.

It is a super-2 number, since 2×2115604201² = 8951562270577696802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115604291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196276 + ... + 206773.

It is an arithmetic number, because the mean of its divisors is an integer number (275081625).

Almost surely, 2^2115604201 is an apocalyptic number.

It is an amenable number.

2115604201 is a deficient number, since it is larger than the sum of its proper divisors (85048799).

2115604201 is a wasteful number, since it uses less digits than its factorization.

2115604201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403259.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2115604201 is about 45995.6976357572. The cubic root of 2115604201 is about 1283.7431529883.

Adding to 2115604201 its reverse (1024065112), we get a palindrome (3139669313).

The spelling of 2115604201 in words is "two billion, one hundred fifteen million, six hundred four thousand, two hundred one".