1449749173 has 2 divisors, whose sum is σ = 1449749174. Its totient is φ = 1449749172.

The previous prime is 1449749129. The next prime is 1449749177. The reversal of 1449749173 is 3719479441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1442252529 + 7496644 = 37977^2 + 2738^2 .

It is a cyclic number.

It is not a de Polignac number, because 1449749173 - 2²¹ = 1447652021 is a prime.

It is a super-2 number, since 2×1449749173² = 4203545329228367858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1449749177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724874586 + 724874587.

It is an arithmetic number, because the mean of its divisors is an integer number (724874587).

Almost surely, 2^1449749173 is an apocalyptic number.

It is an amenable number.

1449749173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449749173 is an equidigital number, since it uses as much as digits as its factorization.

1449749173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 49.

The square root of 1449749173 is about 38075.5718670121. The cubic root of 1449749173 is about 1131.7859280982.

The spelling of 1449749173 in words is "one billion, four hundred forty-nine million, seven hundred forty-nine thousand, one hundred seventy-three".