1450649749 has 2 divisors, whose sum is σ = 1450649750. Its totient is φ = 1450649748.

The previous prime is 1450649701. The next prime is 1450649773. The reversal of 1450649749 is 9479460541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 732784900 + 717864849 = 27070^2 + 26793^2 .

It is a cyclic number.

It is not a de Polignac number, because 1450649749 - 2⁷ = 1450649621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1450649549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725324874 + 725324875.

It is an arithmetic number, because the mean of its divisors is an integer number (725324875).

Almost surely, 2^1450649749 is an apocalyptic number.

It is an amenable number.

1450649749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1450649749 is an equidigital number, since it uses as much as digits as its factorization.

1450649749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 1450649749 is about 38087.3961961172. The cubic root of 1450649749 is about 1132.0202325980.

The spelling of 1450649749 in words is "one billion, four hundred fifty million, six hundred forty-nine thousand, seven hundred forty-nine".