102042419 has 2 divisors, whose sum is σ = 102042420. Its totient is φ = 102042418.

The previous prime is 102042403. The next prime is 102042427. The reversal of 102042419 is 914240201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102042419 - 2⁴ = 102042403 is a prime.

It is a super-2 number, since 2×102042419² = 20825310550743122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102042394 and 102042403.

It is not a weakly prime, because it can be changed into another prime (102042019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51021209 + 51021210.

It is an arithmetic number, because the mean of its divisors is an integer number (51021210).

Almost surely, 2^102042419 is an apocalyptic number.

102042419 is a deficient number, since it is larger than the sum of its proper divisors (1).

102042419 is an equidigital number, since it uses as much as digits as its factorization.

102042419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 102042419 is about 10101.6047735001. The cubic root of 102042419 is about 467.2976336342.

The spelling of 102042419 in words is "one hundred two million, forty-two thousand, four hundred nineteen".