109641121 has 2 divisors, whose sum is σ = 109641122. Its totient is φ = 109641120.

The previous prime is 109641089. The next prime is 109641139. The reversal of 109641121 is 121146901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108910096 + 731025 = 10436^2 + 855^2 .

It is a cyclic number.

It is not a de Polignac number, because 109641121 - 2⁵ = 109641089 is a prime.

It is not a weakly prime, because it can be changed into another prime (109641151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54820560 + 54820561.

It is an arithmetic number, because the mean of its divisors is an integer number (54820561).

Almost surely, 2^109641121 is an apocalyptic number.

It is an amenable number.

109641121 is a deficient number, since it is larger than the sum of its proper divisors (1).

109641121 is an equidigital number, since it uses as much as digits as its factorization.

109641121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 109641121 is about 10470.9656192731. The cubic root of 109641121 is about 478.6203452868.

The spelling of 109641121 in words is "one hundred nine million, six hundred forty-one thousand, one hundred twenty-one".