102230981 has 2 divisors, whose sum is σ = 102230982. Its totient is φ = 102230980.

The previous prime is 102230971. The next prime is 102231049. The reversal of 102230981 is 189032201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94750756 + 7480225 = 9734^2 + 2735^2 .

It is a cyclic number.

It is not a de Polignac number, because 102230981 - 2¹⁰ = 102229957 is a prime.

It is a super-2 number, since 2×102230981² = 20902346952444722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102230981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102230941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51115490 + 51115491.

It is an arithmetic number, because the mean of its divisors is an integer number (51115491).

Almost surely, 2^102230981 is an apocalyptic number.

It is an amenable number.

102230981 is a deficient number, since it is larger than the sum of its proper divisors (1).

102230981 is an equidigital number, since it uses as much as digits as its factorization.

102230981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 102230981 is about 10110.9337353184. The cubic root of 102230981 is about 467.5852929491.

The spelling of 102230981 in words is "one hundred two million, two hundred thirty thousand, nine hundred eighty-one".