774390125 has 36 divisors (see below), whose sum is σ = 1027826748. Its totient is φ = 582426000.

The previous prime is 774390121. The next prime is 774390191. The reversal of 774390125 is 521093477.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 24780484 + 749609641 = 4978^2 + 27379^2 .

It is not a de Polignac number, because 774390125 - 2² = 774390121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774390121) 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 in 35 ways as a sum of consecutive naturals, for example, 5911310 + ... + 5911440.

It is an arithmetic number, because the mean of its divisors is an integer number (28550743).

Almost surely, 2^774390125 is an apocalyptic number.

It is an amenable number.

774390125 is a deficient number, since it is larger than the sum of its proper divisors (253436623).

774390125 is an equidigital number, since it uses as much as digits as its factorization.

774390125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 774390125 is about 27827.8659799849. The cubic root of 774390125 is about 918.3042664865.

The spelling of 774390125 in words is "seven hundred seventy-four million, three hundred ninety thousand, one hundred twenty-five".