108139773 has 16 divisors (see below), whose sum is σ = 173457920. Its totient is φ = 58541616.

The previous prime is 108139747. The next prime is 108139783. The reversal of 108139773 is 377931801.

It is a happy number.

It is not a de Polignac number, because 108139773 - 2⁵ = 108139741 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108139783) 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, 135115 + ... + 135912.

It is an arithmetic number, because the mean of its divisors is an integer number (10841120).

Almost surely, 2^108139773 is an apocalyptic number.

It is an amenable number.

108139773 is a deficient number, since it is larger than the sum of its proper divisors (65318147).

108139773 is a wasteful number, since it uses less digits than its factorization.

108139773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271056.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 108139773 is about 10399.0275026081. The cubic root of 108139773 is about 476.4256675897.

The spelling of 108139773 in words is "one hundred eight million, one hundred thirty-nine thousand, seven hundred seventy-three".