108420156 has 144 divisors (see below), whose sum is σ = 316461600. Its totient is φ = 31021056.

The previous prime is 108420149. The next prime is 108420163. The reversal of 108420156 is 651024801.

It is an interprime number because it is at equal distance from previous prime (108420149) and next prime (108420163).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 791320 + ... + 791456.

It is an arithmetic number, because the mean of its divisors is an integer number (2197650).

Almost surely, 2^108420156 is an apocalyptic number.

It is a pronic number, being equal to 10412×10413.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108420156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158230800).

108420156 is an abundant number, since it is smaller than the sum of its proper divisors (208041444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108420156 is a wasteful number, since it uses less digits than its factorization.

108420156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 108420156 is about 10412.4999879952. The cubic root of 108420156 is about 476.8370684118.

Adding to 108420156 its reverse (651024801), we get a palindrome (759444957).

The spelling of 108420156 in words is "one hundred eight million, four hundred twenty thousand, one hundred fifty-six".