108170639 has 2 divisors, whose sum is σ = 108170640. Its totient is φ = 108170638.

The previous prime is 108170603. The next prime is 108170651. The reversal of 108170639 is 936071801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108170639 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 108170599 and 108170608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108170239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54085319 + 54085320.

It is an arithmetic number, because the mean of its divisors is an integer number (54085320).

Almost surely, 2^108170639 is an apocalyptic number.

108170639 is a deficient number, since it is larger than the sum of its proper divisors (1).

108170639 is an equidigital number, since it uses as much as digits as its factorization.

108170639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 108170639 is about 10400.5114778072. The cubic root of 108170639 is about 476.4709915113.

The spelling of 108170639 in words is "one hundred eight million, one hundred seventy thousand, six hundred thirty-nine".