109954891 has 2 divisors, whose sum is σ = 109954892. Its totient is φ = 109954890.

The previous prime is 109954883. The next prime is 109954939. The reversal of 109954891 is 198459901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109954891 - 2³ = 109954883 is a prime.

It is not a weakly prime, because it can be changed into another prime (109954841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54977445 + 54977446.

It is an arithmetic number, because the mean of its divisors is an integer number (54977446).

Almost surely, 2^109954891 is an apocalyptic number.

109954891 is a deficient number, since it is larger than the sum of its proper divisors (1).

109954891 is an equidigital number, since it uses as much as digits as its factorization.

109954891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 46.

The square root of 109954891 is about 10485.9377739905. The cubic root of 109954891 is about 479.0764809458.

The spelling of 109954891 in words is "one hundred nine million, nine hundred fifty-four thousand, eight hundred ninety-one".