100364561 has 8 divisors (see below), whose sum is σ = 110989344. Its totient is φ = 89989920.

The previous prime is 100364557. The next prime is 100364611. The reversal of 100364561 is 165463001.

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

It is a cyclic number.

It is not a de Polignac number, because 100364561 - 2² = 100364557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100364561.

It is not an unprimeable number, because it can be changed into a prime (100364501) 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, 61691 + ... + 63296.

It is an arithmetic number, because the mean of its divisors is an integer number (13873668).

Almost surely, 2^100364561 is an apocalyptic number.

100364561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100364561 is a deficient number, since it is larger than the sum of its proper divisors (10624783).

100364561 is a wasteful number, since it uses less digits than its factorization.

100364561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125071.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 100364561 is about 10018.2114671233. The cubic root of 100364561 is about 464.7222467361.

The spelling of 100364561 in words is "one hundred million, three hundred sixty-four thousand, five hundred sixty-one".