2003235437449 has 3 divisors (see below), whose sum is σ = 2003236852807. Its totient is φ = 2003234022092.

The previous prime is 2003235437419. The next prime is 2003235437471. The reversal of 2003235437449 is 9447345323002.

The square root of 2003235437449 is 1415357.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 437403663225 + 1565831774224 = 661365^2 + 1251332^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2003235437449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003235437399 and 2003235437408.

It is not an unprimeable number, because it can be changed into a prime (2003235437419) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 707679 + ... + 2123035.

Almost surely, 2^{2003235437449} is an apocalyptic number.

2003235437449 is the 1415357-th square number.

2003235437449 is the 707679-th centered octagonal number.

It is an amenable number.

2003235437449 is a deficient number, since it is larger than the sum of its proper divisors (1415358).

2003235437449 is an frugal number, since it uses more digits than its factorization.

2003235437449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830714 (or 1415357 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 46.

The spelling of 2003235437449 in words is "two trillion, three billion, two hundred thirty-five million, four hundred thirty-seven thousand, four hundred forty-nine".