855142136 has 32 divisors (see below), whose sum is σ = 1628760000. Its totient is φ = 420840576.

The previous prime is 855142129. The next prime is 855142163. The reversal of 855142136 is 631241558.

It is a junction number, because it is equal to n+sod(n) for n = 855142096 and 855142105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218630 + ... + 222506.

It is an arithmetic number, because the mean of its divisors is an integer number (50898750).

Almost surely, 2^855142136 is an apocalyptic number.

It is an amenable number.

855142136 is a deficient number, since it is larger than the sum of its proper divisors (773617864).

855142136 is a wasteful number, since it uses less digits than its factorization.

855142136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311 (or 4307 counting only the distinct ones).

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

The square root of 855142136 is about 29242.8134077417. The cubic root of 855142136 is about 949.1745871983.

The spelling of 855142136 in words is "eight hundred fifty-five million, one hundred forty-two thousand, one hundred thirty-six".