100061645 has 16 divisors (see below), whose sum is σ = 126838272. Its totient is φ = 75660480.

The previous prime is 100061641. The next prime is 100061659. The reversal of 100061645 is 546160001.

It is not a de Polignac number, because 100061645 - 2² = 100061641 is a prime.

It is a super-3 number, since 3×100061645³ (a number of 25 digits) contains 333 as substring.

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 100061645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100061641) 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 15 ways as a sum of consecutive naturals, for example, 842 + ... + 14171.

It is an arithmetic number, because the mean of its divisors is an integer number (7927392).

Almost surely, 2^100061645 is an apocalyptic number.

It is an amenable number.

100061645 is a deficient number, since it is larger than the sum of its proper divisors (26776627).

100061645 is a wasteful number, since it uses less digits than its factorization.

100061645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15092.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 100061645 is about 10003.0817751331. The cubic root of 100061645 is about 464.2542406842.

The spelling of 100061645 in words is "one hundred million, sixty-one thousand, six hundred forty-five".