1236230133 has 4 divisors (see below), whose sum is σ = 1648306848. Its totient is φ = 824153420.

The previous prime is 1236230131. The next prime is 1236230153. The reversal of 1236230133 is 3310326321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3310326321 = 3 ⋅1103442107.

It is a cyclic number.

It is not a de Polignac number, because 1236230133 - 2¹ = 1236230131 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1236230131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206038353 + ... + 206038358.

It is an arithmetic number, because the mean of its divisors is an integer number (412076712).

Almost surely, 2^1236230133 is an apocalyptic number.

It is an amenable number.

1236230133 is a deficient number, since it is larger than the sum of its proper divisors (412076715).

1236230133 is an equidigital number, since it uses as much as digits as its factorization.

1236230133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412076714.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 1236230133 is about 35160.0644623982. The cubic root of 1236230133 is about 1073.2472271134.

Adding to 1236230133 its reverse (3310326321), we get a palindrome (4546556454).

The spelling of 1236230133 in words is "one billion, two hundred thirty-six million, two hundred thirty thousand, one hundred thirty-three".