136404049 has 2 divisors, whose sum is σ = 136404050. Its totient is φ = 136404048.

The previous prime is 136404031. The next prime is 136404067. The reversal of 136404049 is 940404631.

It is a balanced prime because it is at equal distance from previous prime (136404031) and next prime (136404067).

It can be written as a sum of positive squares in only one way, i.e., 135885649 + 518400 = 11657^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 136404049 - 2⁹ = 136403537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136404049.

It is not a weakly prime, because it can be changed into another prime (136404949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68202024 + 68202025.

It is an arithmetic number, because the mean of its divisors is an integer number (68202025).

Almost surely, 2^136404049 is an apocalyptic number.

It is an amenable number.

136404049 is a deficient number, since it is larger than the sum of its proper divisors (1).

136404049 is an equidigital number, since it uses as much as digits as its factorization.

136404049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 136404049 is about 11679.2143999500. The cubic root of 136404049 is about 514.7650909685.

It can be divided in two parts, 13640 and 4049, that added together give a square (17689 = 133²).

The spelling of 136404049 in words is "one hundred thirty-six million, four hundred four thousand, forty-nine".