274831161 has 8 divisors (see below), whose sum is σ = 399754464. Its totient is φ = 166564320.

The previous prime is 274831133. The next prime is 274831171. The reversal of 274831161 is 161138472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 274831161 - 2¹⁴ = 274814777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 8328217 = 274831161 / (2 + 7 + 4 + 8 + 3 + 1 + 1 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (274831171) 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 7 ways as a sum of consecutive naturals, for example, 4164076 + ... + 4164141.

It is an arithmetic number, because the mean of its divisors is an integer number (49969308).

Almost surely, 2^274831161 is an apocalyptic number.

It is an amenable number.

274831161 is a deficient number, since it is larger than the sum of its proper divisors (124923303).

274831161 is a wasteful number, since it uses less digits than its factorization.

274831161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8328231.

The product of its digits is 8064, while the sum is 33.

The square root of 274831161 is about 16578.0324827767. The cubic root of 274831161 is about 650.1626109926.

The spelling of 274831161 in words is "two hundred seventy-four million, eight hundred thirty-one thousand, one hundred sixty-one".