102530881 has 2 divisors, whose sum is σ = 102530882. Its totient is φ = 102530880.

The previous prime is 102530867. The next prime is 102530917. The reversal of 102530881 is 188035201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73273600 + 29257281 = 8560^2 + 5409^2 .

It is an emirp because it is prime and its reverse (188035201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102530881 - 2²⁵ = 68976449 is a prime.

It is a super-2 number, since 2×102530881² = 21025163117272322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102530801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51265440 + 51265441.

It is an arithmetic number, because the mean of its divisors is an integer number (51265441).

Almost surely, 2^102530881 is an apocalyptic number.

It is an amenable number.

102530881 is a deficient number, since it is larger than the sum of its proper divisors (1).

102530881 is an equidigital number, since it uses as much as digits as its factorization.

102530881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 102530881 is about 10125.7533546892. The cubic root of 102530881 is about 468.0420753196.

The spelling of 102530881 in words is "one hundred two million, five hundred thirty thousand, eight hundred eighty-one".