1136638247 has 2 divisors, whose sum is σ = 1136638248. Its totient is φ = 1136638246.

The previous prime is 1136638231. The next prime is 1136638253. The reversal of 1136638247 is 7428366311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1136638247 - 2⁴ = 1136638231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1136638277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568319123 + 568319124.

It is an arithmetic number, because the mean of its divisors is an integer number (568319124).

Almost surely, 2^1136638247 is an apocalyptic number.

1136638247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136638247 is an equidigital number, since it uses as much as digits as its factorization.

1136638247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 1136638247 is about 33714.0660110880. The cubic root of 1136638247 is about 1043.6160635050.

The spelling of 1136638247 in words is "one billion, one hundred thirty-six million, six hundred thirty-eight thousand, two hundred forty-seven".