1136155409 has 2 divisors, whose sum is σ = 1136155410. Its totient is φ = 1136155408.

The previous prime is 1136155379. The next prime is 1136155451. The reversal of 1136155409 is 9045516311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1130842384 + 5313025 = 33628^2 + 2305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1136155409 is a prime.

It is a super-2 number, since 2×1136155409² = 2581698226799914562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1136155459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568077704 + 568077705.

It is an arithmetic number, because the mean of its divisors is an integer number (568077705).

Almost surely, 2^1136155409 is an apocalyptic number.

It is an amenable number.

1136155409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136155409 is an equidigital number, since it uses as much as digits as its factorization.

1136155409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 1136155409 is about 33706.9044707460. The cubic root of 1136155409 is about 1043.4682683550.

The spelling of 1136155409 in words is "one billion, one hundred thirty-six million, one hundred fifty-five thousand, four hundred nine".