7100005205 has 8 divisors (see below), whose sum is σ = 9021183192. Its totient is φ = 5345886208.

The previous prime is 7100005201. The next prime is 7100005207. The reversal of 7100005205 is 5025000017.

It can be written as a sum of positive squares in 4 ways, for example, as 1163764996 + 5936240209 = 34114^2 + 77047^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7100005205 - 2² = 7100005201 is a prime.

It is a super-2 number, since 2×7100005205² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7100005201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41764652 + ... + 41764821.

It is an arithmetic number, because the mean of its divisors is an integer number (1127647899).

Almost surely, 2^7100005205 is an apocalyptic number.

It is an amenable number.

7100005205 is a deficient number, since it is larger than the sum of its proper divisors (1921177987).

7100005205 is a wasteful number, since it uses less digits than its factorization.

7100005205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83529495.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 7100005205 is about 84261.5286177506. The cubic root of 7100005205 is about 1921.9978124457.

The spelling of 7100005205 in words is "seven billion, one hundred million, five thousand, two hundred five".