7200161 has 4 divisors (see below), whose sum is σ = 7213872. Its totient is φ = 7186452.

The previous prime is 7200157. The next prime is 7200187. The reversal of 7200161 is 1610027.

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 a cyclic number.

It is not a de Polignac number, because 7200161 - 2² = 7200157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7200101) 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, 6035 + ... + 7128.

It is an arithmetic number, because the mean of its divisors is an integer number (1803468).

Almost surely, 2^7200161 is an apocalyptic number.

It is an amenable number.

7200161 is a deficient number, since it is larger than the sum of its proper divisors (13711).

7200161 is a wasteful number, since it uses less digits than its factorization.

7200161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13710.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 7200161 is about 2683.3115734107. The cubic root of 7200161 is about 193.0993162048.

Adding to 7200161 its reverse (1610027), we get a palindrome (8810188).

The spelling of 7200161 in words is "seven million, two hundred thousand, one hundred sixty-one".