109248739 has 4 divisors (see below), whose sum is σ = 110215656. Its totient is φ = 108281824.

The previous prime is 109248709. The next prime is 109248751. The reversal of 109248739 is 937842901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109248739 - 2⁷ = 109248611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109248695 and 109248704.

It is not an unprimeable number, because it can be changed into a prime (109248709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483289 + ... + 483514.

It is an arithmetic number, because the mean of its divisors is an integer number (27553914).

Almost surely, 2^109248739 is an apocalyptic number.

109248739 is a deficient number, since it is larger than the sum of its proper divisors (966917).

109248739 is an equidigital number, since it uses as much as digits as its factorization.

109248739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966916.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 109248739 is about 10452.2121581989. The cubic root of 109248739 is about 478.0487030433.

The spelling of 109248739 in words is "one hundred nine million, two hundred forty-eight thousand, seven hundred thirty-nine".