136233649 has 2 divisors, whose sum is σ = 136233650. Its totient is φ = 136233648.

The previous prime is 136233637. The next prime is 136233689. The reversal of 136233649 is 946332631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101364624 + 34869025 = 10068^2 + 5905^2 .

It is a cyclic number.

It is not a de Polignac number, because 136233649 - 2¹⁵ = 136200881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136233689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68116824 + 68116825.

It is an arithmetic number, because the mean of its divisors is an integer number (68116825).

Almost surely, 2^136233649 is an apocalyptic number.

It is an amenable number.

136233649 is a deficient number, since it is larger than the sum of its proper divisors (1).

136233649 is an equidigital number, since it uses as much as digits as its factorization.

136233649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 37.

The square root of 136233649 is about 11671.9171090271. The cubic root of 136233649 is about 514.5506483541.

The spelling of 136233649 in words is "one hundred thirty-six million, two hundred thirty-three thousand, six hundred forty-nine".