102180941 has 2 divisors, whose sum is σ = 102180942. Its totient is φ = 102180940.

The previous prime is 102180937. The next prime is 102180977. The reversal of 102180941 is 149081201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98922916 + 3258025 = 9946^2 + 1805^2 .

It is a cyclic number.

It is not a de Polignac number, because 102180941 - 2² = 102180937 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102180941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102180901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51090470 + 51090471.

It is an arithmetic number, because the mean of its divisors is an integer number (51090471).

Almost surely, 2^102180941 is an apocalyptic number.

It is an amenable number.

102180941 is a deficient number, since it is larger than the sum of its proper divisors (1).

102180941 is an equidigital number, since it uses as much as digits as its factorization.

102180941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 102180941 is about 10108.4588835292. The cubic root of 102180941 is about 467.5089893131.

The spelling of 102180941 in words is "one hundred two million, one hundred eighty thousand, nine hundred forty-one".