1604135159 has 4 divisors (see below), whose sum is σ = 1749965640. Its totient is φ = 1458304680.

The previous prime is 1604135149. The next prime is 1604135177. The reversal of 1604135159 is 9515314061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1604135159 - 2¹² = 1604131063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604135149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72915224 + ... + 72915245.

It is an arithmetic number, because the mean of its divisors is an integer number (437491410).

Almost surely, 2^1604135159 is an apocalyptic number.

1604135159 is a deficient number, since it is larger than the sum of its proper divisors (145830481).

1604135159 is a wasteful number, since it uses less digits than its factorization.

1604135159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145830480.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 1604135159 is about 40051.6561330490. The cubic root of 1604135159 is about 1170.6138350071.

The spelling of 1604135159 in words is "one billion, six hundred four million, one hundred thirty-five thousand, one hundred fifty-nine".