100668419 has 4 divisors (see below), whose sum is σ = 100688496. Its totient is φ = 100648344.

The previous prime is 100668383. The next prime is 100668427. The reversal of 100668419 is 914866001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 914866001 = 7 ⋅130695143.

It is a cyclic number.

It is not a de Polignac number, because 100668419 - 2⁸ = 100668163 is a prime.

It is a super-2 number, since 2×100668419² = 20268261167919122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100668499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4562 + ... + 14904.

It is an arithmetic number, because the mean of its divisors is an integer number (25172124).

Almost surely, 2^100668419 is an apocalyptic number.

100668419 is a deficient number, since it is larger than the sum of its proper divisors (20077).

100668419 is an equidigital number, since it uses as much as digits as its factorization.

100668419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20076.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 100668419 is about 10033.3652878782. The cubic root of 100668419 is about 465.1907630605.

The spelling of 100668419 in words is "one hundred million, six hundred sixty-eight thousand, four hundred nineteen".