136444963 has 2 divisors, whose sum is σ = 136444964. Its totient is φ = 136444962.

The previous prime is 136444961. The next prime is 136445021. The reversal of 136444963 is 369444631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136444963 - 2¹ = 136444961 is a prime.

Together with 136444961, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (136444961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68222481 + 68222482.

It is an arithmetic number, because the mean of its divisors is an integer number (68222482).

Almost surely, 2^136444963 is an apocalyptic number.

136444963 is a deficient number, since it is larger than the sum of its proper divisors (1).

136444963 is an equidigital number, since it uses as much as digits as its factorization.

136444963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 40.

The square root of 136444963 is about 11680.9658419156. The cubic root of 136444963 is about 514.8165532570.

The spelling of 136444963 in words is "one hundred thirty-six million, four hundred forty-four thousand, nine hundred sixty-three".