86134943 has 2 divisors, whose sum is σ = 86134944. Its totient is φ = 86134942.

The previous prime is 86134907. The next prime is 86134949. The reversal of 86134943 is 34943168.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86134943 is a prime.

It is a super-2 number, since 2×86134943² = 14838456811226498, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 86134897 and 86134906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86134949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43067471 + 43067472.

It is an arithmetic number, because the mean of its divisors is an integer number (43067472).

Almost surely, 2^86134943 is an apocalyptic number.

86134943 is a deficient number, since it is larger than the sum of its proper divisors (1).

86134943 is an equidigital number, since it uses as much as digits as its factorization.

86134943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 86134943 is about 9280.8912826301. The cubic root of 86134943 is about 441.6312434546.

The spelling of 86134943 in words is "eighty-six million, one hundred thirty-four thousand, nine hundred forty-three".