100353623 has 4 divisors (see below), whose sum is σ = 104716848. Its totient is φ = 95990400.

The previous prime is 100353613. The next prime is 100353647. The reversal of 100353623 is 326353001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100353623 - 2⁴ = 100353607 is a prime.

It is a super-2 number, since 2×100353623² = 20141699298452258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 4363201 = 100353623 / (1 + 0 + 0 + 3 + 5 + 3 + 6 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100353613) 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 3 ways as a sum of consecutive naturals, for example, 2181578 + ... + 2181623.

It is an arithmetic number, because the mean of its divisors is an integer number (26179212).

Almost surely, 2^100353623 is an apocalyptic number.

100353623 is a deficient number, since it is larger than the sum of its proper divisors (4363225).

100353623 is an equidigital number, since it uses as much as digits as its factorization.

100353623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363224.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 100353623 is about 10017.6655464235. The cubic root of 100353623 is about 464.7053638957.

The spelling of 100353623 in words is "one hundred million, three hundred fifty-three thousand, six hundred twenty-three".