1233447908449 has 9 divisors (see below), whose sum is σ = 1301805243603. Its totient is φ = 1168509606552.

The previous prime is 1233447908419. The next prime is 1233447908501. The reversal of 1233447908449 is 9448097443321.

It is a happy number.

The square root of 1233447908449 is 1110607.

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

It can be written as a sum of positive squares in only one way, i.e., 26235900625 + 1207212007824 = 161975^2 + 1098732^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1233447908449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1233447908393 and 1233447908402.

It is not an unprimeable number, because it can be changed into a prime (1233447908419) 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, 21072307 + ... + 21130759.

It is an arithmetic number, because the mean of its divisors is an integer number (144645027067).

Almost surely, 2^{1233447908449} is an apocalyptic number.

1233447908449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1233447908449 is the 1110607-th square number.

1233447908449 is the 555304-th centered octagonal number.

It is an amenable number.

1233447908449 is a deficient number, since it is larger than the sum of its proper divisors (68357335154).

1233447908449 is an frugal number, since it uses more digits than its factorization.

1233447908449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116944 (or 58472 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 58.

The spelling of 1233447908449 in words is "one trillion, two hundred thirty-three billion, four hundred forty-seven million, nine hundred eight thousand, four hundred forty-nine".