1233455345 has 4 divisors (see below), whose sum is σ = 1480146420. Its totient is φ = 986764272.

The previous prime is 1233455323. The next prime is 1233455359. The reversal of 1233455345 is 5435543321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5435543321 = 13 ⋅418118717.

It can be written as a sum of positive squares in 2 ways, for example, as 276357376 + 957097969 = 16624^2 + 30937^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233455345 - 2¹² = 1233451249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123345530 + ... + 123345539.

It is an arithmetic number, because the mean of its divisors is an integer number (370036605).

Almost surely, 2^1233455345 is an apocalyptic number.

It is an amenable number.

1233455345 is a deficient number, since it is larger than the sum of its proper divisors (246691075).

1233455345 is an equidigital number, since it uses as much as digits as its factorization.

1233455345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246691074.

The product of its digits is 108000, while the sum is 35.

The square root of 1233455345 is about 35120.5829251167. The cubic root of 1233455345 is about 1072.4436376761.

Adding to 1233455345 its reverse (5435543321), we get a palindrome (6668998666).

The spelling of 1233455345 in words is "one billion, two hundred thirty-three million, four hundred fifty-five thousand, three hundred forty-five".