1233545145 has 16 divisors (see below), whose sum is σ = 2255625600. Its totient is φ = 563906304.

The previous prime is 1233545141. The next prime is 1233545153. The reversal of 1233545145 is 5415453321.

It is not a de Polignac number, because 1233545145 - 2² = 1233545141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1233545141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5873920 + ... + 5874129.

It is an arithmetic number, because the mean of its divisors is an integer number (140976600).

Almost surely, 2^1233545145 is an apocalyptic number.

1233545145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1233545145 is a deficient number, since it is larger than the sum of its proper divisors (1022080455).

1233545145 is a wasteful number, since it uses less digits than its factorization.

1233545145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11748064.

The product of its digits is 36000, while the sum is 33.

The square root of 1233545145 is about 35121.8613544328. The cubic root of 1233545145 is about 1072.4696629668.

Adding to 1233545145 its reverse (5415453321), we get a palindrome (6648998466).

The spelling of 1233545145 in words is "one billion, two hundred thirty-three million, five hundred forty-five thousand, one hundred forty-five".