102441681 has 6 divisors (see below), whose sum is σ = 147971330. Its totient is φ = 68294448.

The previous prime is 102441653. The next prime is 102441683. The reversal of 102441681 is 186144201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 78588225 + 23853456 = 8865^2 + 4884^2 .

It is not a de Polignac number, because 102441681 - 2⁵ = 102441649 is a prime.

It is a super-2 number, since 2×102441681² = 20988596012211522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102441683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5691196 + ... + 5691213.

Almost surely, 2^102441681 is an apocalyptic number.

It is an amenable number.

102441681 is a deficient number, since it is larger than the sum of its proper divisors (45529649).

102441681 is a wasteful number, since it uses less digits than its factorization.

102441681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382415 (or 11382412 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 102441681 is about 10121.3477857447. The cubic root of 102441681 is about 467.9063065781.

Adding to 102441681 its reverse (186144201), we get a palindrome (288585882).

The spelling of 102441681 in words is "one hundred two million, four hundred forty-one thousand, six hundred eighty-one".