855148642 has 8 divisors (see below), whose sum is σ = 1295176896. Its totient is φ = 423423012.

The previous prime is 855148639. The next prime is 855148667. The reversal of 855148642 is 246841558.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2075398 + ... + 2075809.

It is an arithmetic number, because the mean of its divisors is an integer number (161897112).

Almost surely, 2^855148642 is an apocalyptic number.

855148642 is a deficient number, since it is larger than the sum of its proper divisors (440028254).

855148642 is a wasteful number, since it uses less digits than its factorization.

855148642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151312.

The product of its digits is 307200, while the sum is 43.

The square root of 855148642 is about 29242.9246485368. The cubic root of 855148642 is about 949.1769943281.

The spelling of 855148642 in words is "eight hundred fifty-five million, one hundred forty-eight thousand, six hundred forty-two".