1449469873 has 2 divisors, whose sum is σ = 1449469874. Its totient is φ = 1449469872.

The previous prime is 1449469859. The next prime is 1449469877. The reversal of 1449469873 is 3789649441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1133803584 + 315666289 = 33672^2 + 17767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1449469873 is a prime.

It is a super-2 number, since 2×1449469873² = 4201925825469272258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1449469877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724734936 + 724734937.

It is an arithmetic number, because the mean of its divisors is an integer number (724734937).

Almost surely, 2^1449469873 is an apocalyptic number.

It is an amenable number.

1449469873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449469873 is an equidigital number, since it uses as much as digits as its factorization.

1449469873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 55.

The square root of 1449469873 is about 38071.9039844345. The cubic root of 1449469873 is about 1131.7132423956.

The spelling of 1449469873 in words is "one billion, four hundred forty-nine million, four hundred sixty-nine thousand, eight hundred seventy-three".