100501620 has 96 divisors (see below), whose sum is σ = 306125568. Its totient is φ = 24532992.

The previous prime is 100501613. The next prime is 100501631. The reversal of 100501620 is 26105001.

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

It is a self number, because there is not a number n which added to its sum of digits gives 100501620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36409 + ... + 39071.

It is an arithmetic number, because the mean of its divisors is an integer number (3188808).

Almost surely, 2^100501620 is an apocalyptic number.

100501620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100501620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153062784).

100501620 is an abundant number, since it is smaller than the sum of its proper divisors (205623948).

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

100501620 is a wasteful number, since it uses less digits than its factorization.

100501620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729 (or 2727 counting only the distinct ones).

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

The square root of 100501620 is about 10025.0496258123. The cubic root of 100501620 is about 464.9336938639.

Adding to 100501620 its reverse (26105001), we get a palindrome (126606621).

The spelling of 100501620 in words is "one hundred million, five hundred one thousand, six hundred twenty".