1235772233 has 4 divisors (see below), whose sum is σ = 1236422160. Its totient is φ = 1235122308.

The previous prime is 1235772229. The next prime is 1235772247. The reversal of 1235772233 is 3322775321.

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: 3322775321 = 6079 ⋅546599.

It is a cyclic number.

It is not a de Polignac number, because 1235772233 - 2² = 1235772229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1235772193 and 1235772202.

It is not an unprimeable number, because it can be changed into a prime (1235772283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322103 + ... + 325916.

It is an arithmetic number, because the mean of its divisors is an integer number (309105540).

Almost surely, 2^1235772233 is an apocalyptic number.

It is an amenable number.

1235772233 is a deficient number, since it is larger than the sum of its proper divisors (649927).

1235772233 is an equidigital number, since it uses as much as digits as its factorization.

1235772233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649926.

The product of its digits is 52920, while the sum is 35.

The square root of 1235772233 is about 35153.5522102675. The cubic root of 1235772233 is about 1073.1147003879.

The spelling of 1235772233 in words is "one billion, two hundred thirty-five million, seven hundred seventy-two thousand, two hundred thirty-three".