100120650 has 192 divisors, whose sum is σ = 308551680. Its totient is φ = 20966400.

The previous prime is 100120619. The next prime is 100120661. The reversal of 100120650 is 56021001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1267311 + ... + 1267389.

It is an arithmetic number, because the mean of its divisors is an integer number (1607040).

Almost surely, 2^100120650 is an apocalyptic number.

100120650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100120650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154275840).

100120650 is an abundant number, since it is smaller than the sum of its proper divisors (208431030).

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

100120650 is a wasteful number, since it uses less digits than its factorization.

100120650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 100120650 is about 10006.0306815440. The cubic root of 100120650 is about 464.3454775703.

Adding to 100120650 its reverse (56021001), we get a palindrome (156141651).

The spelling of 100120650 in words is "one hundred million, one hundred twenty thousand, six hundred fifty".