86541543 has 24 divisors (see below), whose sum is σ = 144392976. Its totient is φ = 49363200.

The previous prime is 86541503. The next prime is 86541551. The reversal of 86541543 is 34514568.

It is a happy number.

It is not a de Polignac number, because 86541543 - 2²¹ = 84444391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86541498 and 86541507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86541503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24028 + ... + 27393.

It is an arithmetic number, because the mean of its divisors is an integer number (6016374).

Almost surely, 2^86541543 is an apocalyptic number.

86541543 is a deficient number, since it is larger than the sum of its proper divisors (57851433).

86541543 is a wasteful number, since it uses less digits than its factorization.

86541543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51455 (or 51452 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 86541543 is about 9302.7707162974. The cubic root of 86541543 is about 442.3250596416.

The spelling of 86541543 in words is "eighty-six million, five hundred forty-one thousand, five hundred forty-three".