100816745 has 8 divisors (see below), whose sum is σ = 123931080. Its totient is φ = 78686080.

The previous prime is 100816733. The next prime is 100816753. The reversal of 100816745 is 547618001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6416089 + 94400656 = 2533^2 + 9716^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-100816745 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245690 + ... + 246099.

It is an arithmetic number, because the mean of its divisors is an integer number (15491385).

Almost surely, 2^100816745 is an apocalyptic number.

It is an amenable number.

100816745 is a deficient number, since it is larger than the sum of its proper divisors (23114335).

100816745 is an equidigital number, since it uses as much as digits as its factorization.

100816745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491835.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 100816745 is about 10040.7542047398. The cubic root of 100816745 is about 465.4191234046.

The spelling of 100816745 in words is "one hundred million, eight hundred sixteen thousand, seven hundred forty-five".