100144856 has 32 divisors (see below), whose sum is σ = 215857440. Its totient is φ = 42667008.

The previous prime is 100144853. The next prime is 100144873. The reversal of 100144856 is 658441001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100144853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4520 + ... + 14856.

It is an arithmetic number, because the mean of its divisors is an integer number (6745545).

Almost surely, 2^100144856 is an apocalyptic number.

It is an amenable number.

100144856 is an abundant number, since it is smaller than the sum of its proper divisors (115712584).

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

100144856 is a wasteful number, since it uses less digits than its factorization.

100144856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523 (or 10519 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 100144856 is about 10007.2401789904. The cubic root of 100144856 is about 464.3828958949.

Adding to 100144856 its reverse (658441001), we get a palindrome (758585857).

The spelling of 100144856 in words is "one hundred million, one hundred forty-four thousand, eight hundred fifty-six".