774148117 has 2 divisors, whose sum is σ = 774148118. Its totient is φ = 774148116.

The previous prime is 774148093. The next prime is 774148147. The reversal of 774148117 is 711841477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 600936196 + 173211921 = 24514^2 + 13161^2 .

It is a cyclic number.

It is not a de Polignac number, because 774148117 - 2¹¹ = 774146069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 774148117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (774148147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387074058 + 387074059.

It is an arithmetic number, because the mean of its divisors is an integer number (387074059).

Almost surely, 2^774148117 is an apocalyptic number.

It is an amenable number.

774148117 is a deficient number, since it is larger than the sum of its proper divisors (1).

774148117 is an equidigital number, since it uses as much as digits as its factorization.

774148117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43904, while the sum is 40.

The square root of 774148117 is about 27823.5173369580. The cubic root of 774148117 is about 918.2085954432.

The spelling of 774148117 in words is "seven hundred seventy-four million, one hundred forty-eight thousand, one hundred seventeen".