100725456 has 80 divisors (see below), whose sum is σ = 282343040. Its totient is φ = 30758400.

The previous prime is 100725437. The next prime is 100725461. The reversal of 100725456 is 654527001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93690 + ... + 94758.

It is an arithmetic number, because the mean of its divisors is an integer number (3529288).

Almost surely, 2^100725456 is an apocalyptic number.

100725456 is a gapful number since it is divisible by the number (16) 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 100725456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141171520).

100725456 is an abundant number, since it is smaller than the sum of its proper divisors (181617584).

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

100725456 is a wasteful number, since it uses less digits than its factorization.

100725456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 100725456 is about 10036.2072517460. The cubic root of 100725456 is about 465.2786028429.

The spelling of 100725456 in words is "one hundred million, seven hundred twenty-five thousand, four hundred fifty-six".