163404419 has 2 divisors, whose sum is σ = 163404420. Its totient is φ = 163404418.

The previous prime is 163404377. The next prime is 163404431. The reversal of 163404419 is 914404361.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163404419 is a prime.

It is a super-2 number, since 2×163404419² = 53402008297455122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (163404019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81702209 + 81702210.

It is an arithmetic number, because the mean of its divisors is an integer number (81702210).

Almost surely, 2^163404419 is an apocalyptic number.

163404419 is a deficient number, since it is larger than the sum of its proper divisors (1).

163404419 is an equidigital number, since it uses as much as digits as its factorization.

163404419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 163404419 is about 12782.9737932924. The cubic root of 163404419 is about 546.7069552319.

The spelling of 163404419 in words is "one hundred sixty-three million, four hundred four thousand, four hundred nineteen".