135976543 has 2 divisors, whose sum is σ = 135976544. Its totient is φ = 135976542.

The previous prime is 135976481. The next prime is 135976553. The reversal of 135976543 is 345679531.

It is a strong prime.

It is an emirp because it is prime and its reverse (345679531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135976543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135976543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135976553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67988271 + 67988272.

It is an arithmetic number, because the mean of its divisors is an integer number (67988272).

Almost surely, 2^135976543 is an apocalyptic number.

135976543 is a deficient number, since it is larger than the sum of its proper divisors (1).

135976543 is an equidigital number, since it uses as much as digits as its factorization.

135976543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 43.

The square root of 135976543 is about 11660.8980357432. The cubic root of 135976543 is about 514.2267504747.

The spelling of 135976543 in words is "one hundred thirty-five million, nine hundred seventy-six thousand, five hundred forty-three".