774412161 has 16 divisors (see below), whose sum is σ = 1046255616. Its totient is φ = 509437136.

The previous prime is 774412157. The next prime is 774412181. The reversal of 774412161 is 161214477.

It is a cyclic number.

It is not a de Polignac number, because 774412161 - 2² = 774412157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (774412181) 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 15 ways as a sum of consecutive naturals, for example, 303256 + ... + 305798.

It is an arithmetic number, because the mean of its divisors is an integer number (65390976).

Almost surely, 2^774412161 is an apocalyptic number.

It is an amenable number.

774412161 is a deficient number, since it is larger than the sum of its proper divisors (271843455).

774412161 is a wasteful number, since it uses less digits than its factorization.

774412161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852.

The product of its digits is 9408, while the sum is 33.

The square root of 774412161 is about 27828.2619112297. The cubic root of 774412161 is about 918.3129768080.

The spelling of 774412161 in words is "seven hundred seventy-four million, four hundred twelve thousand, one hundred sixty-one".