7180001 has 4 divisors (see below), whose sum is σ = 7602372. Its totient is φ = 6757632.

The previous prime is 7179983. The next prime is 7180009. The reversal of 7180001 is 1000817.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000817 = 59 ⋅16963.

It can be written as a sum of positive squares in 2 ways, for example, as 3478225 + 3701776 = 1865^2 + 1924^2 .

It is a cyclic number.

It is not a de Polignac number, because 7180001 - 2⁶ = 7179937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 422353 = 7180001 / (7 + 1 + 8 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7180009) 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 3 ways as a sum of consecutive naturals, for example, 211160 + ... + 211193.

It is an arithmetic number, because the mean of its divisors is an integer number (1900593).

Almost surely, 2^7180001 is an apocalyptic number.

It is an amenable number.

7180001 is a deficient number, since it is larger than the sum of its proper divisors (422371).

7180001 is a wasteful number, since it uses less digits than its factorization.

7180001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422370.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 7180001 is about 2679.5523879932. The cubic root of 7180001 is about 192.9189257407.

Adding to 7180001 its reverse (1000817), we get a palindrome (8180818).

The spelling of 7180001 in words is "seven million, one hundred eighty thousand, one".