207044681 has 2 divisors, whose sum is σ = 207044682. Its totient is φ = 207044680.

The previous prime is 207044639. The next prime is 207044687. The reversal of 207044681 is 186440702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174372025 + 32672656 = 13205^2 + 5716^2 .

It is a cyclic number.

It is not a de Polignac number, because 207044681 - 2¹⁰ = 207043657 is a prime.

It is a super-2 number, since 2×207044681² = 85734999860783522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (207044687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103522340 + 103522341.

It is an arithmetic number, because the mean of its divisors is an integer number (103522341).

Almost surely, 2^207044681 is an apocalyptic number.

It is an amenable number.

207044681 is a deficient number, since it is larger than the sum of its proper divisors (1).

207044681 is an equidigital number, since it uses as much as digits as its factorization.

207044681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 207044681 is about 14389.0472582447. The cubic root of 207044681 is about 591.5907288466.

The spelling of 207044681 in words is "two hundred seven million, forty-four thousand, six hundred eighty-one".