1325642605 has 32 divisors (see below), whose sum is σ = 1900952064. Its totient is φ = 867710976.

The previous prime is 1325642573. The next prime is 1325642611. The reversal of 1325642605 is 5062465231.

It is a cyclic number.

It is not a de Polignac number, because 1325642605 - 2⁵ = 1325642573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 475977 + ... + 478753.

It is an arithmetic number, because the mean of its divisors is an integer number (59404752).

Almost surely, 2^1325642605 is an apocalyptic number.

It is an amenable number.

1325642605 is a deficient number, since it is larger than the sum of its proper divisors (575309459).

1325642605 is a wasteful number, since it uses less digits than its factorization.

1325642605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 1325642605 is about 36409.3752349584. The cubic root of 1325642605 is about 1098.5221490038.

The spelling of 1325642605 in words is "one billion, three hundred twenty-five million, six hundred forty-two thousand, six hundred five".