1345323451 has 8 divisors (see below), whose sum is σ = 1349661600. Its totient is φ = 1340993472.

The previous prime is 1345323439. The next prime is 1345323493. The reversal of 1345323451 is 1543235431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345323451 - 2⁹ = 1345322939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345323851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509631 + ... + 512263.

It is an arithmetic number, because the mean of its divisors is an integer number (168707700).

Almost surely, 2^1345323451 is an apocalyptic number.

1345323451 is a deficient number, since it is larger than the sum of its proper divisors (4338149).

1345323451 is an equidigital number, since it uses as much as digits as its factorization.

1345323451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085.

The product of its digits is 21600, while the sum is 31.

The square root of 1345323451 is about 36678.6511611319. The cubic root of 1345323451 is about 1103.9317839576.

Adding to 1345323451 its reverse (1543235431), we get a palindrome (2888558882).

The spelling of 1345323451 in words is "one billion, three hundred forty-five million, three hundred twenty-three thousand, four hundred fifty-one".