1345420799 has 4 divisors (see below), whose sum is σ = 1416232440. Its totient is φ = 1274609160.

The previous prime is 1345420793. The next prime is 1345420807. The reversal of 1345420799 is 9970245431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9970245431 = 1663 ⋅5995337.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345420799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345420793) 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, 35405792 + ... + 35405829.

It is an arithmetic number, because the mean of its divisors is an integer number (354058110).

Almost surely, 2^1345420799 is an apocalyptic number.

1345420799 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1345420799 is a deficient number, since it is larger than the sum of its proper divisors (70811641).

1345420799 is an equidigital number, since it uses as much as digits as its factorization.

1345420799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70811640.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 1345420799 is about 36679.9781761113. The cubic root of 1345420799 is about 1103.9584102581.

The spelling of 1345420799 in words is "one billion, three hundred forty-five million, four hundred twenty thousand, seven hundred ninety-nine".