100155156 has 96 divisors (see below), whose sum is σ = 261273600. Its totient is φ = 29715840.

The previous prime is 100155149. The next prime is 100155157. The reversal of 100155156 is 651551001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100155157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372190 + ... + 372458.

It is an arithmetic number, because the mean of its divisors is an integer number (2721600).

Almost surely, 2^100155156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100155156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130636800).

100155156 is an abundant number, since it is smaller than the sum of its proper divisors (161118444).

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

100155156 is a wasteful number, since it uses less digits than its factorization.

100155156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 100155156 is about 10007.7547931592. The cubic root of 100155156 is about 464.3988160997.

The spelling of 100155156 in words is "one hundred million, one hundred fifty-five thousand, one hundred fifty-six".