1233545128 has 32 divisors (see below), whose sum is σ = 2371723200. Its totient is φ = 601147008.

The previous prime is 1233545119. The next prime is 1233545141. The reversal of 1233545128 is 8215453321.

It is a junction number, because it is equal to n+sod(n) for n = 1233545093 and 1233545102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169468 + ... + 176596.

It is an arithmetic number, because the mean of its divisors is an integer number (74116350).

Almost surely, 2^1233545128 is an apocalyptic number.

It is an amenable number.

1233545128 is a deficient number, since it is larger than the sum of its proper divisors (1138178072).

1233545128 is a wasteful number, since it uses less digits than its factorization.

1233545128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7681 (or 7677 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 1233545128 is about 35121.8611124183. The cubic root of 1233545128 is about 1072.4696580401.

Adding to 1233545128 its reverse (8215453321), we get a palindrome (9448998449).

The spelling of 1233545128 in words is "one billion, two hundred thirty-three million, five hundred forty-five thousand, one hundred twenty-eight".