203723141449 has 9 divisors (see below), whose sum is σ = 204986107573. Its totient is φ = 202467917632.

The previous prime is 203723141443. The next prime is 203723141537. The reversal of 203723141449 is 944141327302.

The square root of 203723141449 is 451357.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 40290525625 + 163432615824 = 200725^2 + 404268^2 .

It is not a de Polignac number, because 203723141449 - 2¹⁵ = 203723108681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203723141443) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 78083457 + ... + 78086065.

Almost surely, 2^203723141449 is an apocalyptic number.

203723141449 is the 451357-th square number.

203723141449 is the 225679-th centered octagonal number.

It is an amenable number.

203723141449 is a deficient number, since it is larger than the sum of its proper divisors (1262966124).

203723141449 is an frugal number, since it uses more digits than its factorization.

203723141449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564 (or 2782 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 203723141449 in words is "two hundred three billion, seven hundred twenty-three million, one hundred forty-one thousand, four hundred forty-nine".