110291921 has 2 divisors, whose sum is σ = 110291922. Its totient is φ = 110291920.

The previous prime is 110291917. The next prime is 110291953. The reversal of 110291921 is 129192011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96334225 + 13957696 = 9815^2 + 3736^2 .

It is a cyclic number.

It is not a de Polignac number, because 110291921 - 2² = 110291917 is a prime.

It is not a weakly prime, because it can be changed into another prime (110201921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55145960 + 55145961.

It is an arithmetic number, because the mean of its divisors is an integer number (55145961).

Almost surely, 2^110291921 is an apocalyptic number.

It is an amenable number.

110291921 is a deficient number, since it is larger than the sum of its proper divisors (1).

110291921 is an equidigital number, since it uses as much as digits as its factorization.

110291921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 110291921 is about 10501.9960483710. The cubic root of 110291921 is about 479.5654646700.

The spelling of 110291921 in words is "one hundred ten million, two hundred ninety-one thousand, nine hundred twenty-one".