1073343749 has 2 divisors, whose sum is σ = 1073343750. Its totient is φ = 1073343748.

The previous prime is 1073343743. The next prime is 1073343751. The reversal of 1073343749 is 9473433701.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1044453124 + 28890625 = 32318^2 + 5375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1073343749 is a prime.

Together with 1073343751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1073343743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536671874 + 536671875.

It is an arithmetic number, because the mean of its divisors is an integer number (536671875).

Almost surely, 2^1073343749 is an apocalyptic number.

It is an amenable number.

1073343749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073343749 is an equidigital number, since it uses as much as digits as its factorization.

1073343749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 41.

The square root of 1073343749 is about 32761.9252944634. The cubic root of 1073343749 is about 1023.8734397241.

The spelling of 1073343749 in words is "one billion, seventy-three million, three hundred forty-three thousand, seven hundred forty-nine".