109661853 has 12 divisors (see below), whose sum is σ = 170088000. Its totient is φ = 62663832.

The previous prime is 109661813. The next prime is 109661869. The reversal of 109661853 is 358166901.

It is not a de Polignac number, because 109661853 - 2⁹ = 109661341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109661813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372853 + ... + 373146.

It is an arithmetic number, because the mean of its divisors is an integer number (14174000).

Almost surely, 2^109661853 is an apocalyptic number.

It is an amenable number.

109661853 is a deficient number, since it is larger than the sum of its proper divisors (60426147).

109661853 is an equidigital number, since it uses as much as digits as its factorization.

109661853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746016 (or 746009 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 109661853 is about 10471.9555480340. The cubic root of 109661853 is about 478.6505107683.

The spelling of 109661853 in words is "one hundred nine million, six hundred sixty-one thousand, eight hundred fifty-three".