102036681 has 6 divisors (see below), whose sum is σ = 147386330. Its totient is φ = 68024448.

The previous prime is 102036679. The next prime is 102036689. The reversal of 102036681 is 186630201.

It can be written as a sum of positive squares in only one way, i.e., 62157456 + 39879225 = 7884^2 + 6315^2 .

It is not a de Polignac number, because 102036681 - 2¹ = 102036679 is a prime.

It is a super-2 number, since 2×102036681² = 20822968538991522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102036689) 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 5 ways as a sum of consecutive naturals, for example, 5668696 + ... + 5668713.

Almost surely, 2^102036681 is an apocalyptic number.

It is an amenable number.

102036681 is a deficient number, since it is larger than the sum of its proper divisors (45349649).

102036681 is a wasteful number, since it uses less digits than its factorization.

102036681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11337415 (or 11337412 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 102036681 is about 10101.3207552280. The cubic root of 102036681 is about 467.2888745185.

Adding to 102036681 its reverse (186630201), we get a palindrome (288666882).

The spelling of 102036681 in words is "one hundred two million, thirty-six thousand, six hundred eighty-one".