1345952473 has 2 divisors, whose sum is σ = 1345952474. Its totient is φ = 1345952472.

The previous prime is 1345952459. The next prime is 1345952537. The reversal of 1345952473 is 3742595431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1332761049 + 13191424 = 36507^2 + 3632^2 .

It is an emirp because it is prime and its reverse (3742595431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345952473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1345952423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672976236 + 672976237.

It is an arithmetic number, because the mean of its divisors is an integer number (672976237).

Almost surely, 2^1345952473 is an apocalyptic number.

It is an amenable number.

1345952473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345952473 is an equidigital number, since it uses as much as digits as its factorization.

1345952473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 43.

The square root of 1345952473 is about 36687.2249291221. The cubic root of 1345952473 is about 1104.1038093000.

The spelling of 1345952473 in words is "one billion, three hundred forty-five million, nine hundred fifty-two thousand, four hundred seventy-three".