20100419 has 2 divisors, whose sum is σ = 20100420. Its totient is φ = 20100418.

The previous prime is 20100403. The next prime is 20100433. The reversal of 20100419 is 91400102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20100419 - 2⁴ = 20100403 is a prime.

It is a super-2 number, since 2×20100419² = 808053687951122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20100397 and 20100406.

It is not a weakly prime, because it can be changed into another prime (20100439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050209 + 10050210.

It is an arithmetic number, because the mean of its divisors is an integer number (10050210).

Almost surely, 2^20100419 is an apocalyptic number.

20100419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100419 is an equidigital number, since it uses as much as digits as its factorization.

20100419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 20100419 is about 4483.3490829959. The cubic root of 20100419 is about 271.8953019410.

The spelling of 20100419 in words is "twenty million, one hundred thousand, four hundred nineteen".