108950021 has 2 divisors, whose sum is σ = 108950022. Its totient is φ = 108950020.

The previous prime is 108949963. The next prime is 108950053. The reversal of 108950021 is 120059801.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76300225 + 32649796 = 8735^2 + 5714^2 .

It is a cyclic number.

It is not a de Polignac number, because 108950021 - 2¹⁰ = 108948997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108950321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54475010 + 54475011.

It is an arithmetic number, because the mean of its divisors is an integer number (54475011).

Almost surely, 2^108950021 is an apocalyptic number.

It is an amenable number.

108950021 is a deficient number, since it is larger than the sum of its proper divisors (1).

108950021 is an equidigital number, since it uses as much as digits as its factorization.

108950021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 108950021 is about 10437.9126744766. The cubic root of 108950021 is about 477.6125970044.

The spelling of 108950021 in words is "one hundred eight million, nine hundred fifty thousand, twenty-one".