109363621 has 4 divisors (see below), whose sum is σ = 109882144. Its totient is φ = 108845100.

The previous prime is 109363619. The next prime is 109363627. The reversal of 109363621 is 126363901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 126363901 = 6577 ⋅19213.

It is a cyclic number.

It is not a de Polignac number, because 109363621 - 2¹ = 109363619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109363627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258945 + ... + 259366.

It is an arithmetic number, because the mean of its divisors is an integer number (27470536).

Almost surely, 2^109363621 is an apocalyptic number.

It is an amenable number.

109363621 is a deficient number, since it is larger than the sum of its proper divisors (518523).

109363621 is an equidigital number, since it uses as much as digits as its factorization.

109363621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518522.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 109363621 is about 10457.7062972719. The cubic root of 109363621 is about 478.2162105511.

The spelling of 109363621 in words is "one hundred nine million, three hundred sixty-three thousand, six hundred twenty-one".