100520419 has 4 divisors (see below), whose sum is σ = 104890896. Its totient is φ = 96149944.

The previous prime is 100520411. The next prime is 100520429. The reversal of 100520419 is 914025001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 914025001 = 19 ⋅48106579.

It is a cyclic number.

It is not a de Polignac number, because 100520419 - 2³ = 100520411 is a prime.

It is a super-2 number, since 2×100520419² = 20208709271871122, which contains 22 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 100520419.

It is not an unprimeable number, because it can be changed into a prime (100520411) 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, 2185204 + ... + 2185249.

It is an arithmetic number, because the mean of its divisors is an integer number (26222724).

Almost surely, 2^100520419 is an apocalyptic number.

100520419 is a deficient number, since it is larger than the sum of its proper divisors (4370477).

100520419 is an equidigital number, since it uses as much as digits as its factorization.

100520419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370476.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 100520419 is about 10025.9871833152. The cubic root of 100520419 is about 464.9626809376.

The spelling of 100520419 in words is "one hundred million, five hundred twenty thousand, four hundred nineteen".