855172341 has 12 divisors (see below), whose sum is σ = 1244137440. Its totient is φ = 566012520.

The previous prime is 855172337. The next prime is 855172363. The reversal of 855172341 is 143271558.

855172341 is a `hidden beast` number, since 8 + 551 + 72 + 34 + 1 = 666.

It is not a de Polignac number, because 855172341 - 2² = 855172337 is a prime.

It is a super-2 number, since 2×855172341² = 1462639465622840562, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 855172296 and 855172305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855172391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340545 + ... + 343046.

It is an arithmetic number, because the mean of its divisors is an integer number (103678120).

Almost surely, 2^855172341 is an apocalyptic number.

It is an amenable number.

855172341 is a deficient number, since it is larger than the sum of its proper divisors (388965099).

855172341 is a wasteful number, since it uses less digits than its factorization.

855172341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683736 (or 683733 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 855172341 is about 29243.3298548575. The cubic root of 855172341 is about 949.1857625260.

The spelling of 855172341 in words is "eight hundred fifty-five million, one hundred seventy-two thousand, three hundred forty-one".