109581393 has 8 divisors (see below), whose sum is σ = 149217408. Its totient is φ = 71499824.

The previous prime is 109581377. The next prime is 109581403. The reversal of 109581393 is 393185901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109581393 - 2⁴ = 109581377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109581323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388446 + ... + 388727.

It is an arithmetic number, because the mean of its divisors is an integer number (18652176).

Almost surely, 2^109581393 is an apocalyptic number.

It is an amenable number.

109581393 is a deficient number, since it is larger than the sum of its proper divisors (39636015).

109581393 is an equidigital number, since it uses as much as digits as its factorization.

109581393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777223.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 109581393 is about 10468.1131537637. The cubic root of 109581393 is about 478.5334185683.

The spelling of 109581393 in words is "one hundred nine million, five hundred eighty-one thousand, three hundred ninety-three".