136415249 has 2 divisors, whose sum is σ = 136415250. Its totient is φ = 136415248.

The previous prime is 136415243. The next prime is 136415261. The reversal of 136415249 is 942514631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120670225 + 15745024 = 10985^2 + 3968^2 .

It is a cyclic number.

It is not a de Polignac number, because 136415249 - 2¹⁶ = 136349713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136415243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68207624 + 68207625.

It is an arithmetic number, because the mean of its divisors is an integer number (68207625).

Almost surely, 2^136415249 is an apocalyptic number.

It is an amenable number.

136415249 is a deficient number, since it is larger than the sum of its proper divisors (1).

136415249 is an equidigital number, since it uses as much as digits as its factorization.

136415249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 136415249 is about 11679.6938744130. The cubic root of 136415249 is about 514.7791795318.

The spelling of 136415249 in words is "one hundred thirty-six million, four hundred fifteen thousand, two hundred forty-nine".