1205325642 has 8 divisors (see below), whose sum is σ = 2410651296. Its totient is φ = 401775212.

The previous prime is 1205325559. The next prime is 1205325661. The reversal of 1205325642 is 2465235021.

It is a sphenic number, since it is the product of 3 distinct primes.

1205325642 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 100443798 + ... + 100443809.

It is an arithmetic number, because the mean of its divisors is an integer number (301331412).

Almost surely, 2^1205325642 is an apocalyptic number.

1205325642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1205325642 is a wasteful number, since it uses less digits than its factorization.

1205325642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200887612.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1205325642 is about 34717.8000743135. The cubic root of 1205325642 is about 1064.2282879531.

The spelling of 1205325642 in words is "one billion, two hundred five million, three hundred twenty-five thousand, six hundred forty-two".