1073740649 has 2 divisors, whose sum is σ = 1073740650. Its totient is φ = 1073740648.

The previous prime is 1073740609. The next prime is 1073740691. The reversal of 1073740649 is 9460473701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 585640000 + 488100649 = 24200^2 + 22093^2 .

It is a cyclic number.

It is not a de Polignac number, because 1073740649 - 2²⁰ = 1072692073 is a prime.

It is a nialpdrome in base 8.

It is not a weakly prime, because it can be changed into another prime (1073740609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536870324 + 536870325.

It is an arithmetic number, because the mean of its divisors is an integer number (536870325).

Almost surely, 2^1073740649 is an apocalyptic number.

It is an amenable number.

1073740649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073740649 is an equidigital number, since it uses as much as digits as its factorization.

1073740649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 1073740649 is about 32767.9820709179. The cubic root of 1073740649 is about 1023.9996264774. Note that the first 3 decimals are identical.

The spelling of 1073740649 in words is "one billion, seventy-three million, seven hundred forty thousand, six hundred forty-nine".