200207102581 has 8 divisors (see below), whose sum is σ = 202054232600. Its totient is φ = 198360161280.

The previous prime is 200207102573. The next prime is 200207102603. The reversal of 200207102581 is 185201702002.

It can be written as a sum of positive squares in 4 ways, for example, as 29176056100 + 171031046481 = 170810^2 + 413559^2 .

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 200207102581 - 2³ = 200207102573 is a prime.

It is a super-2 number, since 2×200207102581² (a number of 23 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 (200207102281) 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, 2967301 + ... + 3034021.

It is an arithmetic number, because the mean of its divisors is an integer number (25256779075).

Almost surely, 2^200207102581 is an apocalyptic number.

It is an amenable number.

200207102581 is a deficient number, since it is larger than the sum of its proper divisors (1847130019).

200207102581 is a wasteful number, since it uses less digits than its factorization.

200207102581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94359.

The product of its (nonzero) digits is 2240, while the sum is 28.

Adding to 200207102581 its reverse (185201702002), we get a palindrome (385408804583).

The spelling of 200207102581 in words is "two hundred billion, two hundred seven million, one hundred two thousand, five hundred eighty-one".