109242993 has 8 divisors (see below), whose sum is σ = 148756608. Its totient is φ = 71279024.

The previous prime is 109242979. The next prime is 109242997. The reversal of 109242993 is 399242901.

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 109242993 - 2¹⁰ = 109241969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109242997) 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 in 7 ways as a sum of consecutive naturals, for example, 387246 + ... + 387527.

It is an arithmetic number, because the mean of its divisors is an integer number (18594576).

Almost surely, 2^109242993 is an apocalyptic number.

It is an amenable number.

109242993 is a deficient number, since it is larger than the sum of its proper divisors (39513615).

109242993 is an equidigital number, since it uses as much as digits as its factorization.

109242993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774823.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 109242993 is about 10451.9372845420. The cubic root of 109242993 is about 478.0403218146.

The spelling of 109242993 in words is "one hundred nine million, two hundred forty-two thousand, nine hundred ninety-three".