1136744449 has 2 divisors, whose sum is σ = 1136744450. Its totient is φ = 1136744448.

The previous prime is 1136744447. The next prime is 1136744461. The reversal of 1136744449 is 9444476311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 769063824 + 367680625 = 27732^2 + 19175^2 .

It is a cyclic number.

It is not a de Polignac number, because 1136744449 - 2¹ = 1136744447 is a prime.

Together with 1136744447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1136744447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568372224 + 568372225.

It is an arithmetic number, because the mean of its divisors is an integer number (568372225).

Almost surely, 2^1136744449 is an apocalyptic number.

It is an amenable number.

1136744449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136744449 is an equidigital number, since it uses as much as digits as its factorization.

1136744449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 1136744449 is about 33715.6410142237. The cubic root of 1136744449 is about 1043.6485659779.

The spelling of 1136744449 in words is "one billion, one hundred thirty-six million, seven hundred forty-four thousand, four hundred forty-nine".