100163643 has 24 divisors (see below), whose sum is σ = 148067328. Its totient is φ = 60103296.

The previous prime is 100163633. The next prime is 100163659. The reversal of 100163643 is 346361001.

It is not a de Polignac number, because 100163643 - 2⁹ = 100163131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100163633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17430 + ... + 22452.

It is an arithmetic number, because the mean of its divisors is an integer number (6169472).

Almost surely, 2^100163643 is an apocalyptic number.

100163643 is a deficient number, since it is larger than the sum of its proper divisors (47903685).

100163643 is a wasteful number, since it uses less digits than its factorization.

100163643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5083 (or 5066 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 100163643 is about 10008.1788053571. The cubic root of 100163643 is about 464.4119332191.

The spelling of 100163643 in words is "one hundred million, one hundred sixty-three thousand, six hundred forty-three".