1604875523 has 2 divisors, whose sum is σ = 1604875524. Its totient is φ = 1604875522.

The previous prime is 1604875483. The next prime is 1604875537. The reversal of 1604875523 is 3255784061.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1604875523 is a prime.

It is not a weakly prime, because it can be changed into another prime (1604875543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802437761 + 802437762.

It is an arithmetic number, because the mean of its divisors is an integer number (802437762).

Almost surely, 2^1604875523 is an apocalyptic number.

1604875523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604875523 is an equidigital number, since it uses as much as digits as its factorization.

1604875523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 1604875523 is about 40060.8976809058. The cubic root of 1604875523 is about 1170.7939002667.

The spelling of 1604875523 in words is "one billion, six hundred four million, eight hundred seventy-five thousand, five hundred twenty-three".