7205161 has 8 divisors (see below), whose sum is σ = 8030880. Its totient is φ = 6424128.

The previous prime is 7205119. The next prime is 7205167. The reversal of 7205161 is 1615027.

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

It is not a de Polignac number, because 7205161 - 2¹⁹ = 6680873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7205167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10831 + ... + 11476.

It is an arithmetic number, because the mean of its divisors is an integer number (1003860).

Almost surely, 2^7205161 is an apocalyptic number.

It is an amenable number.

7205161 is a deficient number, since it is larger than the sum of its proper divisors (825719).

7205161 is a wasteful number, since it uses less digits than its factorization.

7205161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22343.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 7205161 is about 2684.2430962936. The cubic root of 7205161 is about 193.1440037785.

The spelling of 7205161 in words is "seven million, two hundred five thousand, one hundred sixty-one".