6615201 has 4 divisors (see below), whose sum is σ = 8820272. Its totient is φ = 4410132.

The previous prime is 6615199. The next prime is 6615221. The reversal of 6615201 is 1025166.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6615201 - 2¹ = 6615199 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6615221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102531 + ... + 1102536.

It is an arithmetic number, because the mean of its divisors is an integer number (2205068).

Almost surely, 2^6615201 is an apocalyptic number.

It is an amenable number.

6615201 is a deficient number, since it is larger than the sum of its proper divisors (2205071).

6615201 is a wasteful number, since it uses less digits than its factorization.

6615201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205070.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 6615201 is about 2572.0033048190. The cubic root of 6615201 is about 187.7216436697.

The spelling of 6615201 in words is "six million, six hundred fifteen thousand, two hundred one".