1345204433 has 4 divisors (see below), whose sum is σ = 1348269120. Its totient is φ = 1342139748.

The previous prime is 1345204409. The next prime is 1345204451. The reversal of 1345204433 is 3344025431.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345204433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1345204396 and 1345204405.

It is not an unprimeable number, because it can be changed into a prime (1345204463) 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, 1531685 + ... + 1532562.

It is an arithmetic number, because the mean of its divisors is an integer number (337067280).

Almost surely, 2^1345204433 is an apocalyptic number.

It is an amenable number.

1345204433 is a deficient number, since it is larger than the sum of its proper divisors (3064687).

1345204433 is an equidigital number, since it uses as much as digits as its factorization.

1345204433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064686.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 1345204433 is about 36677.0286828145. The cubic root of 1345204433 is about 1103.8992288057.

Adding to 1345204433 its reverse (3344025431), we get a palindrome (4689229864).

The spelling of 1345204433 in words is "one billion, three hundred forty-five million, two hundred four thousand, four hundred thirty-three".