674211161 has 4 divisors (see below), whose sum is σ = 726073572. Its totient is φ = 622348752.

The previous prime is 674211127. The next prime is 674211163. The reversal of 674211161 is 161112476.

674211161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65108761 + 609102400 = 8069^2 + 24680^2 .

It is a cyclic number.

It is not a de Polignac number, because 674211161 - 2¹⁰ = 674210137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674211163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25931186 + ... + 25931211.

It is an arithmetic number, because the mean of its divisors is an integer number (181518393).

Almost surely, 2^674211161 is an apocalyptic number.

It is an amenable number.

674211161 is a deficient number, since it is larger than the sum of its proper divisors (51862411).

674211161 is a wasteful number, since it uses less digits than its factorization.

674211161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51862410.

The product of its digits is 2016, while the sum is 29.

The square root of 674211161 is about 25965.5764619236. The cubic root of 674211161 is about 876.8634728208.

The spelling of 674211161 in words is "six hundred seventy-four million, two hundred eleven thousand, one hundred sixty-one".