136102649 has 2 divisors, whose sum is σ = 136102650. Its totient is φ = 136102648.

The previous prime is 136102633. The next prime is 136102699. The reversal of 136102649 is 946201631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69973225 + 66129424 = 8365^2 + 8132^2 .

It is a cyclic number.

It is not a de Polignac number, because 136102649 - 2⁴ = 136102633 is a prime.

It is not a weakly prime, because it can be changed into another prime (136102699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68051324 + 68051325.

It is an arithmetic number, because the mean of its divisors is an integer number (68051325).

Almost surely, 2^136102649 is an apocalyptic number.

It is an amenable number.

136102649 is a deficient number, since it is larger than the sum of its proper divisors (1).

136102649 is an equidigital number, since it uses as much as digits as its factorization.

136102649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 136102649 is about 11666.3039991250. The cubic root of 136102649 is about 514.3856676940.

The spelling of 136102649 in words is "one hundred thirty-six million, one hundred two thousand, six hundred forty-nine".