100445652 has 18 divisors (see below), whose sum is σ = 253904378. Its totient is φ = 33481872.

The previous prime is 100445641. The next prime is 100445659. The reversal of 100445652 is 256544001.

100445652 is a `hidden beast` number, since 1 + 0 + 0 + 4 + 4 + 5 + 652 = 666.

It can be written as a sum of positive squares in only one way, i.e., 71673156 + 28772496 = 8466^2 + 5364^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100445659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1395043 + ... + 1395114.

Almost surely, 2^100445652 is an apocalyptic number.

100445652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100445652 is an abundant number, since it is smaller than the sum of its proper divisors (153458726).

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

100445652 is a wasteful number, since it uses less digits than its factorization.

100445652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790167 (or 2790162 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 100445652 is about 10022.2578294514. The cubic root of 100445652 is about 464.8473727320.

Adding to 100445652 its reverse (256544001), we get a palindrome (356989653).

It can be divided in two parts, 1004 and 45652, that added together give a 6-th power (46656 = 6⁶).

The spelling of 100445652 in words is "one hundred million, four hundred forty-five thousand, six hundred fifty-two".