108837221 has 2 divisors, whose sum is σ = 108837222. Its totient is φ = 108837220.

The previous prime is 108837167. The next prime is 108837227. The reversal of 108837221 is 122738801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102232321 + 6604900 = 10111^2 + 2570^2 .

It is an emirp because it is prime and its reverse (122738801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108837221 - 2²² = 104642917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108837227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54418610 + 54418611.

It is an arithmetic number, because the mean of its divisors is an integer number (54418611).

Almost surely, 2^108837221 is an apocalyptic number.

It is an amenable number.

108837221 is a deficient number, since it is larger than the sum of its proper divisors (1).

108837221 is an equidigital number, since it uses as much as digits as its factorization.

108837221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 108837221 is about 10432.5078959951. The cubic root of 108837221 is about 477.4477100713.

The spelling of 108837221 in words is "one hundred eight million, eight hundred thirty-seven thousand, two hundred twenty-one".