100493999 has 4 divisors (see below), whose sum is σ = 100551600. Its totient is φ = 100436400.

The previous prime is 100493977. The next prime is 100494007. The reversal of 100493999 is 999394001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999394001 = 751 ⋅1330751.

It is a cyclic number.

It is not a de Polignac number, because 100493999 - 2¹⁶ = 100428463 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100493929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26099 + ... + 29700.

It is an arithmetic number, because the mean of its divisors is an integer number (25137900).

Almost surely, 2^100493999 is an apocalyptic number.

100493999 is a deficient number, since it is larger than the sum of its proper divisors (57601).

100493999 is an equidigital number, since it uses as much as digits as its factorization.

100493999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57600.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 100493999 is about 10024.6695207373. The cubic root of 100493999 is about 464.9219416512.

The spelling of 100493999 in words is "one hundred million, four hundred ninety-three thousand, nine hundred ninety-nine".