1233023453 has 4 divisors (see below), whose sum is σ = 1245231708. Its totient is φ = 1220815200.

The previous prime is 1233023431. The next prime is 1233023497. The reversal of 1233023453 is 3543203321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 620856889 + 612166564 = 24917^2 + 24742^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233023453 - 2²² = 1228829149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233026453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6103976 + ... + 6104177.

It is an arithmetic number, because the mean of its divisors is an integer number (311307927).

Almost surely, 2^1233023453 is an apocalyptic number.

It is an amenable number.

1233023453 is a deficient number, since it is larger than the sum of its proper divisors (12208255).

1233023453 is a wasteful number, since it uses less digits than its factorization.

1233023453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12208254.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 1233023453 is about 35114.4336847400. The cubic root of 1233023453 is about 1072.3184517096.

Adding to 1233023453 its reverse (3543203321), we get a palindrome (4776226774).

The spelling of 1233023453 in words is "one billion, two hundred thirty-three million, twenty-three thousand, four hundred fifty-three".