108920749 has 16 divisors (see below), whose sum is σ = 132321280. Its totient is φ = 87577200.

The previous prime is 108920741. The next prime is 108920797. The reversal of 108920749 is 947029801.

It is a cyclic number.

It is not a de Polignac number, because 108920749 - 2³ = 108920741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108920741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9724 + ... + 17674.

It is an arithmetic number, because the mean of its divisors is an integer number (8270080).

Almost surely, 2^108920749 is an apocalyptic number.

108920749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

108920749 is a deficient number, since it is larger than the sum of its proper divisors (23400531).

108920749 is a wasteful number, since it uses less digits than its factorization.

108920749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 108920749 is about 10436.5103842233. The cubic root of 108920749 is about 477.5698191996.

The spelling of 108920749 in words is "one hundred eight million, nine hundred twenty thousand, seven hundred forty-nine".