742174709 has 2 divisors, whose sum is σ = 742174710. Its totient is φ = 742174708.

The previous prime is 742174703. The next prime is 742174723. The reversal of 742174709 is 907471247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 738480625 + 3694084 = 27175^2 + 1922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742174709 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742174703) 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 as a sum of consecutive naturals, namely, 371087354 + 371087355.

It is an arithmetic number, because the mean of its divisors is an integer number (371087355).

Almost surely, 2^742174709 is an apocalyptic number.

It is an amenable number.

742174709 is a deficient number, since it is larger than the sum of its proper divisors (1).

742174709 is an equidigital number, since it uses as much as digits as its factorization.

742174709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 742174709 is about 27242.8836395856. The cubic root of 742174709 is about 905.3893541532.

The spelling of 742174709 in words is "seven hundred forty-two million, one hundred seventy-four thousand, seven hundred nine".