7288161 has 8 divisors (see below), whose sum is σ = 9804000. Its totient is φ = 4815552.

The previous prime is 7288159. The next prime is 7288163. The reversal of 7288161 is 1618827.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7288159) and next prime (7288163).

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

It is not a de Polignac number, because 7288161 - 2¹ = 7288159 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7288163) 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, 10411 + ... + 11088.

It is an arithmetic number, because the mean of its divisors is an integer number (1225500).

Almost surely, 2^7288161 is an apocalyptic number.

It is an amenable number.

7288161 is a deficient number, since it is larger than the sum of its proper divisors (2515839).

7288161 is a wasteful number, since it uses less digits than its factorization.

7288161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21615.

The product of its digits is 5376, while the sum is 33.

The square root of 7288161 is about 2699.6594229643. The cubic root of 7288161 is about 193.8828161827.

The spelling of 7288161 in words is "seven million, two hundred eighty-eight thousand, one hundred sixty-one".