774213149 has 2 divisors, whose sum is σ = 774213150. Its totient is φ = 774213148.

The previous prime is 774213119. The next prime is 774213191. The reversal of 774213149 is 941312477.

It is a happy number.

774213149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 607622500 + 166590649 = 24650^2 + 12907^2 .

It is a cyclic number.

It is not a de Polignac number, because 774213149 - 2²⁴ = 757435933 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 (774213119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387106574 + 387106575.

It is an arithmetic number, because the mean of its divisors is an integer number (387106575).

Almost surely, 2^774213149 is an apocalyptic number.

It is an amenable number.

774213149 is a deficient number, since it is larger than the sum of its proper divisors (1).

774213149 is an equidigital number, since it uses as much as digits as its factorization.

774213149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 38.

The square root of 774213149 is about 27824.6859640859. The cubic root of 774213149 is about 918.2343059707.

The spelling of 774213149 in words is "seven hundred seventy-four million, two hundred thirteen thousand, one hundred forty-nine".