1449520873 has 2 divisors, whose sum is σ = 1449520874. Its totient is φ = 1449520872.

The previous prime is 1449520829. The next prime is 1449520879. The reversal of 1449520873 is 3780259441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1358069904 + 91450969 = 36852^2 + 9563^2 .

It is a cyclic number.

It is not a de Polignac number, because 1449520873 - 2¹³ = 1449512681 is a prime.

It is a super-2 number, since 2×1449520873² = 4202221522525364258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1449520879) 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, 724760436 + 724760437.

It is an arithmetic number, because the mean of its divisors is an integer number (724760437).

Almost surely, 2^1449520873 is an apocalyptic number.

It is an amenable number.

1449520873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449520873 is an equidigital number, since it uses as much as digits as its factorization.

1449520873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 1449520873 is about 38072.5737638001. The cubic root of 1449520873 is about 1131.7265154549.

The spelling of 1449520873 in words is "one billion, four hundred forty-nine million, five hundred twenty thousand, eight hundred seventy-three".