109934921 has 2 divisors, whose sum is σ = 109934922. Its totient is φ = 109934920.

The previous prime is 109934863. The next prime is 109934933. The reversal of 109934921 is 129439901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64561225 + 45373696 = 8035^2 + 6736^2 .

It is an emirp because it is prime and its reverse (129439901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109934921 - 2⁶ = 109934857 is a prime.

It is not a weakly prime, because it can be changed into another prime (109934221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54967460 + 54967461.

It is an arithmetic number, because the mean of its divisors is an integer number (54967461).

Almost surely, 2^109934921 is an apocalyptic number.

It is an amenable number.

109934921 is a deficient number, since it is larger than the sum of its proper divisors (1).

109934921 is an equidigital number, since it uses as much as digits as its factorization.

109934921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 109934921 is about 10484.9855030896. The cubic root of 109934921 is about 479.0474759102.

The spelling of 109934921 in words is "one hundred nine million, nine hundred thirty-four thousand, nine hundred twenty-one".