1233455445 has 40 divisors (see below), whose sum is σ = 2231448120. Its totient is φ = 651784320.

The previous prime is 1233455413. The next prime is 1233455449. The reversal of 1233455445 is 5445543321.

It can be written as a sum of positive squares in 4 ways, for example, as 201696804 + 1031758641 = 14202^2 + 32121^2 .

It is not a de Polignac number, because 1233455445 - 2⁵ = 1233455413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233455449) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30175 + ... + 58115.

It is an arithmetic number, because the mean of its divisors is an integer number (55786203).

Almost surely, 2^1233455445 is an apocalyptic number.

1233455445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1233455445 is a deficient number, since it is larger than the sum of its proper divisors (997992675).

1233455445 is a wasteful number, since it uses less digits than its factorization.

1233455445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28067 (or 28058 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 1233455445 is about 35120.5843487833. The cubic root of 1233455445 is about 1072.4436666582.

Adding to 1233455445 its reverse (5445543321), we get a palindrome (6678998766).

The spelling of 1233455445 in words is "one billion, two hundred thirty-three million, four hundred fifty-five thousand, four hundred forty-five".