100312156 has 48 divisors (see below), whose sum is σ = 208660480. Its totient is φ = 41290560.

The previous prime is 100312151. The next prime is 100312253. The reversal of 100312156 is 651213001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100312151) 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, 141130 + ... + 141838.

Almost surely, 2^100312156 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 100312156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104330240).

100312156 is an abundant number, since it is smaller than the sum of its proper divisors (108348324).

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

100312156 is a wasteful number, since it uses less digits than its factorization.

100312156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 100312156 is about 10015.5956388025. The cubic root of 100312156 is about 464.6413482959.

Adding to 100312156 its reverse (651213001), we get a palindrome (751525157).

The spelling of 100312156 in words is "one hundred million, three hundred twelve thousand, one hundred fifty-six".