109913261 has 2 divisors, whose sum is σ = 109913262. Its totient is φ = 109913260.

The previous prime is 109913239. The next prime is 109913263. The reversal of 109913261 is 162319901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104244100 + 5669161 = 10210^2 + 2381^2 .

It is a cyclic number.

It is not a de Polignac number, because 109913261 - 2¹⁴ = 109896877 is a prime.

Together with 109913263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109913263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54956630 + 54956631.

It is an arithmetic number, because the mean of its divisors is an integer number (54956631).

Almost surely, 2^109913261 is an apocalyptic number.

It is an amenable number.

109913261 is a deficient number, since it is larger than the sum of its proper divisors (1).

109913261 is an equidigital number, since it uses as much as digits as its factorization.

109913261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 109913261 is about 10483.9525466305. The cubic root of 109913261 is about 479.0160122959.

The spelling of 109913261 in words is "one hundred nine million, nine hundred thirteen thousand, two hundred sixty-one".