100154512 has 30 divisors (see below), whose sum is σ = 202870262. Its totient is φ = 47895936.

The previous prime is 100154503. The next prime is 100154519. The reversal of 100154512 is 215451001.

It can be written as a sum of positive squares in only one way, i.e., 98724096 + 1430416 = 9936^2 + 1196^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100154512.

It is not an unprimeable number, because it can be changed into a prime (100154519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2548 + ... + 14380.

Almost surely, 2^100154512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100154512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101435131).

100154512 is an abundant number, since it is smaller than the sum of its proper divisors (102715750).

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

100154512 is a wasteful number, since it uses less digits than its factorization.

100154512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11887 (or 11858 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 100154512 is about 10007.7226180585. The cubic root of 100154512 is about 464.3978207325.

The spelling of 100154512 in words is "one hundred million, one hundred fifty-four thousand, five hundred twelve".