1345105393 has 2 divisors, whose sum is σ = 1345105394. Its totient is φ = 1345105392.

The previous prime is 1345105381. The next prime is 1345105477. The reversal of 1345105393 is 3935015431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1325542464 + 19562929 = 36408^2 + 4423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345105393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1345105303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672552696 + 672552697.

It is an arithmetic number, because the mean of its divisors is an integer number (672552697).

Almost surely, 2^1345105393 is an apocalyptic number.

It is an amenable number.

1345105393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345105393 is an equidigital number, since it uses as much as digits as its factorization.

1345105393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 1345105393 is about 36675.6784940647. The cubic root of 1345105393 is about 1103.8721367989.

The spelling of 1345105393 in words is "one billion, three hundred forty-five million, one hundred five thousand, three hundred ninety-three".