1609162135 has 16 divisors (see below), whose sum is σ = 2207895552. Its totient is φ = 1102903200.

The previous prime is 1609162129. The next prime is 1609162147. The reversal of 1609162135 is 5312619061.

It is not a de Polignac number, because 1609162135 - 2⁵ = 1609162103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1609162135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73290 + ... + 92680.

It is an arithmetic number, because the mean of its divisors is an integer number (137993472).

Almost surely, 2^1609162135 is an apocalyptic number.

1609162135 is a deficient number, since it is larger than the sum of its proper divisors (598733417).

1609162135 is a wasteful number, since it uses less digits than its factorization.

1609162135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21774.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 1609162135 is about 40114.3632007290. The cubic root of 1609162135 is about 1171.8353678425.

The spelling of 1609162135 in words is "one billion, six hundred nine million, one hundred sixty-two thousand, one hundred thirty-five".