1305641852 has 12 divisors (see below), whose sum is σ = 2338010136. Its totient is φ = 637638960.

The previous prime is 1305641839. The next prime is 1305641861. The reversal of 1305641852 is 2581465031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3795299 + ... + 3795642.

It is an arithmetic number, because the mean of its divisors is an integer number (194834178).

Almost surely, 2^1305641852 is an apocalyptic number.

It is an amenable number.

1305641852 is a deficient number, since it is larger than the sum of its proper divisors (1032368284).

1305641852 is a wasteful number, since it uses less digits than its factorization.

1305641852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7590988 (or 7590986 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 1305641852 is about 36133.6664621790. Note that the first 3 decimals coincide. The cubic root of 1305641852 is about 1092.9694448435.

The spelling of 1305641852 in words is "one billion, three hundred five million, six hundred forty-one thousand, eight hundred fifty-two".