855071242 has 8 divisors (see below), whose sum is σ = 1282893696. Its totient is φ = 427440012.

The previous prime is 855071227. The next prime is 855071249. The reversal of 855071242 is 242170558.

It is a happy number.

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

It is a super-2 number, since 2×855071242² = 1462293657790845128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 855071198 and 855071207.

It is not an unprimeable number, because it can be changed into a prime (855071249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36048 + ... + 54859.

It is an arithmetic number, because the mean of its divisors is an integer number (160361712).

Almost surely, 2^855071242 is an apocalyptic number.

855071242 is a deficient number, since it is larger than the sum of its proper divisors (427822454).

855071242 is a wasteful number, since it uses less digits than its factorization.

855071242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95612.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 855071242 is about 29241.6012215474. The cubic root of 855071242 is about 949.1483566104.

The spelling of 855071242 in words is "eight hundred fifty-five million, seventy-one thousand, two hundred forty-two".