136368943 has 2 divisors, whose sum is σ = 136368944. Its totient is φ = 136368942.

The previous prime is 136368941. The next prime is 136368961. The reversal of 136368943 is 349863631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136368943 - 2¹ = 136368941 is a prime.

It is a super-2 number, since 2×136368943² = 37192977229874498, which contains 22 as substring.

Together with 136368941, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 136368943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136368941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68184471 + 68184472.

It is an arithmetic number, because the mean of its divisors is an integer number (68184472).

Almost surely, 2^136368943 is an apocalyptic number.

136368943 is a deficient number, since it is larger than the sum of its proper divisors (1).

136368943 is an equidigital number, since it uses as much as digits as its factorization.

136368943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 43.

The square root of 136368943 is about 11677.7113768067. The cubic root of 136368943 is about 514.7209258723.

The spelling of 136368943 in words is "one hundred thirty-six million, three hundred sixty-eight thousand, nine hundred forty-three".