1606871325 has 24 divisors (see below), whose sum is σ = 2796522400. Its totient is φ = 811892160.

The previous prime is 1606871311. The next prime is 1606871341. The reversal of 1606871325 is 5231786061.

It is not a de Polignac number, because 1606871325 - 2⁴ = 1606871309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 562390 + ... + 565239.

Almost surely, 2^1606871325 is an apocalyptic number.

1606871325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1606871325 is a deficient number, since it is larger than the sum of its proper divisors (1189651075).

1606871325 is a wasteful number, since it uses less digits than its factorization.

1606871325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127661 (or 1127656 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1606871325 is about 40085.7995429803. The cubic root of 1606871325 is about 1171.2790271658.

The spelling of 1606871325 in words is "one billion, six hundred six million, eight hundred seventy-one thousand, three hundred twenty-five".