1604016019 has 2 divisors, whose sum is σ = 1604016020. Its totient is φ = 1604016018.

The previous prime is 1604015993. The next prime is 1604016041. The reversal of 1604016019 is 9106104061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1604016019 - 2⁹ = 1604015507 is a prime.

It is a super-2 number, since 2×1604016019² = 5145734778417216722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1604016059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802008009 + 802008010.

It is an arithmetic number, because the mean of its divisors is an integer number (802008010).

Almost surely, 2^1604016019 is an apocalyptic number.

1604016019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604016019 is an equidigital number, since it uses as much as digits as its factorization.

1604016019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1604016019 is about 40050.1687761737. The cubic root of 1604016019 is about 1170.5848535786.

The spelling of 1604016019 in words is "one billion, six hundred four million, sixteen thousand, nineteen".