1606134591 has 12 divisors (see below), whose sum is σ = 2382674632. Its totient is φ = 1041816816.

The previous prime is 1606134571. The next prime is 1606134611. The reversal of 1606134591 is 1954316061.

1606134591 is a `hidden beast` number, since 1 + 6 + 0 + 61 + 3 + 4 + 591 = 666.

It is an interprime number because it is at equal distance from previous prime (1606134571) and next prime (1606134611).

It is not a de Polignac number, because 1606134591 - 2⁵ = 1606134559 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 (1606134571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2411281 + ... + 2411946.

Almost surely, 2^1606134591 is an apocalyptic number.

1606134591 is a deficient number, since it is larger than the sum of its proper divisors (776540041).

1606134591 is a wasteful number, since it uses less digits than its factorization.

1606134591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4823270 (or 4823267 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1606134591 is about 40076.6090257147. The cubic root of 1606134591 is about 1171.0999933330.

The spelling of 1606134591 in words is "one billion, six hundred six million, one hundred thirty-four thousand, five hundred ninety-one".