109139803 has 2 divisors, whose sum is σ = 109139804. Its totient is φ = 109139802.

The previous prime is 109139801. The next prime is 109139837. The reversal of 109139803 is 308931901.

It is an a-pointer prime, because the next prime (109139837) can be obtained adding 109139803 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109139803 - 2¹ = 109139801 is a prime.

It is a super-2 number, since 2×109139803² = 23822993197757618, which contains 22 as substring.

Together with 109139801, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (109139801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54569901 + 54569902.

It is an arithmetic number, because the mean of its divisors is an integer number (54569902).

Almost surely, 2^109139803 is an apocalyptic number.

109139803 is a deficient number, since it is larger than the sum of its proper divisors (1).

109139803 is an equidigital number, since it uses as much as digits as its factorization.

109139803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 109139803 is about 10446.9997128362. Note that the first 3 decimals coincide. The cubic root of 109139803 is about 477.8897567928.

The spelling of 109139803 in words is "one hundred nine million, one hundred thirty-nine thousand, eight hundred three".