100920750 has 128 divisors (see below), whose sum is σ = 294727680. Its totient is φ = 22521600.

The previous prime is 100920733. The next prime is 100920751. The reversal of 100920750 is 57029001.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100920750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100920751) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 246546 + ... + 246954.

It is an arithmetic number, because the mean of its divisors is an integer number (2302560).

Almost surely, 2^100920750 is an apocalyptic number.

100920750 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 100920750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147363840).

100920750 is an abundant number, since it is smaller than the sum of its proper divisors (193806930).

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

100920750 is a wasteful number, since it uses less digits than its factorization.

100920750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 100920750 is about 10045.9320125113. The cubic root of 100920750 is about 465.5791142867.

Adding to 100920750 its reverse (57029001), we get a palindrome (157949751).

It can be divided in two parts, 100920 and 750, that multiplied together give a square (75690000 = 8700²).

The spelling of 100920750 in words is "one hundred million, nine hundred twenty thousand, seven hundred fifty".