1232445345 has 32 divisors (see below), whose sum is σ = 2096969472. Its totient is φ = 615954432.

The previous prime is 1232445341. The next prime is 1232445353. The reversal of 1232445345 is 5435442321.

It is not a de Polignac number, because 1232445345 - 2² = 1232445341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1232445341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49044 + ... + 69786.

It is an arithmetic number, because the mean of its divisors is an integer number (65530296).

Almost surely, 2^1232445345 is an apocalyptic number.

1232445345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1232445345 is a deficient number, since it is larger than the sum of its proper divisors (864524127).

1232445345 is a wasteful number, since it uses less digits than its factorization.

1232445345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21001.

The product of its digits is 57600, while the sum is 33.

The square root of 1232445345 is about 35106.2009479807. The cubic root of 1232445345 is about 1072.1508385734.

Adding to 1232445345 its reverse (5435442321), we get a palindrome (6667887666).

The spelling of 1232445345 in words is "one billion, two hundred thirty-two million, four hundred forty-five thousand, three hundred forty-five".