1325209516 has 12 divisors (see below), whose sum is σ = 2348473120. Its totient is φ = 654217200.

The previous prime is 1325209507. The next prime is 1325209547. The reversal of 1325209516 is 6159025231.

It is a super-2 number, since 2×1325209516² = 3512360522593908512, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2096535 + ... + 2097166.

Almost surely, 2^1325209516 is an apocalyptic number.

It is an amenable number.

1325209516 is a deficient number, since it is larger than the sum of its proper divisors (1023263604).

1325209516 is a wasteful number, since it uses less digits than its factorization.

1325209516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193784 (or 4193782 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 1325209516 is about 36403.4272562351. The cubic root of 1325209516 is about 1098.4025064806.

The spelling of 1325209516 in words is "one billion, three hundred twenty-five million, two hundred nine thousand, five hundred sixteen".