742635601 has 2 divisors, whose sum is σ = 742635602. Its totient is φ = 742635600.

The previous prime is 742635557. The next prime is 742635613. The reversal of 742635601 is 106536247.

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., 738534976 + 4100625 = 27176^2 + 2025^2 .

It is an emirp because it is prime and its reverse (106536247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 742635601 - 2¹³ = 742627409 is a prime.

It is not a weakly prime, because it can be changed into another prime (742665601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371317800 + 371317801.

It is an arithmetic number, because the mean of its divisors is an integer number (371317801).

Almost surely, 2^742635601 is an apocalyptic number.

It is an amenable number.

742635601 is a deficient number, since it is larger than the sum of its proper divisors (1).

742635601 is an equidigital number, since it uses as much as digits as its factorization.

742635601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 742635601 is about 27251.3412697430. The cubic root of 742635601 is about 905.5767315799.

The spelling of 742635601 in words is "seven hundred forty-two million, six hundred thirty-five thousand, six hundred one".