742635137 has 2 divisors, whose sum is σ = 742635138. Its totient is φ = 742635136.

The previous prime is 742635119. The next prime is 742635151. The reversal of 742635137 is 731536247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423083761 + 319551376 = 20569^2 + 17876^2 .

It is a cyclic number.

It is not a de Polignac number, because 742635137 - 2⁶ = 742635073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 742635137.

It is not a weakly prime, because it can be changed into another prime (742695137) 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, 371317568 + 371317569.

It is an arithmetic number, because the mean of its divisors is an integer number (371317569).

Almost surely, 2^742635137 is an apocalyptic number.

It is an amenable number.

742635137 is a deficient number, since it is larger than the sum of its proper divisors (1).

742635137 is an equidigital number, since it uses as much as digits as its factorization.

742635137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 38.

The square root of 742635137 is about 27251.3327563993. The cubic root of 742635137 is about 905.5765429779.

The spelling of 742635137 in words is "seven hundred forty-two million, six hundred thirty-five thousand, one hundred thirty-seven".