7082170121 has 8 divisors (see below), whose sum is σ = 7629163080. Its totient is φ = 6535492992.

The previous prime is 7082170087. The next prime is 7082170141. The reversal of 7082170121 is 1210712807.

It can be written as a sum of positive squares in 4 ways, for example, as 245360896 + 6836809225 = 15664^2 + 82685^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7082170121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7082170141) 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, 31310 + ... + 123063.

It is an arithmetic number, because the mean of its divisors is an integer number (953645385).

Almost surely, 2^7082170121 is an apocalyptic number.

It is an amenable number.

7082170121 is a deficient number, since it is larger than the sum of its proper divisors (546992959).

7082170121 is a wasteful number, since it uses less digits than its factorization.

7082170121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157915.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 7082170121 is about 84155.6303582832. The cubic root of 7082170121 is about 1920.3871218288.

Adding to 7082170121 its reverse (1210712807), we get a palindrome (8292882928).

The spelling of 7082170121 in words is "seven billion, eighty-two million, one hundred seventy thousand, one hundred twenty-one".