1604875543 has 2 divisors, whose sum is σ = 1604875544. Its totient is φ = 1604875542.

The previous prime is 1604875537. The next prime is 1604875553. The reversal of 1604875543 is 3455784061.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1604875543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1604875543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1604875523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802437771 + 802437772.

It is an arithmetic number, because the mean of its divisors is an integer number (802437772).

Almost surely, 2^1604875543 is an apocalyptic number.

1604875543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1604875543 is an equidigital number, since it uses as much as digits as its factorization.

1604875543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 1604875543 is about 40060.8979305257. The cubic root of 1604875543 is about 1170.7939051302.

The spelling of 1604875543 in words is "one billion, six hundred four million, eight hundred seventy-five thousand, five hundred forty-three".