274945 has 8 divisors (see below), whose sum is σ = 360000. Its totient is φ = 199920.

The previous prime is 274943. The next prime is 274951. The reversal of 274945 is 549472.

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

It is not a de Polignac number, because 274945 - 2¹ = 274943 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (274943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2445 + ... + 2554.

It is an arithmetic number, because the mean of its divisors is an integer number (45000).

2²⁷⁴⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

274945 is a deficient number, since it is larger than the sum of its proper divisors (85055).

274945 is a wasteful number, since it uses less digits than its factorization.

274945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015.

The product of its digits is 10080, while the sum is 31.

The square root of 274945 is about 524.3519810204. The cubic root of 274945 is about 65.0252367487.

It can be divided in two parts, 2 and 74945, that added together give a palindrome (74947).

The spelling of 274945 in words is "two hundred seventy-four thousand, nine hundred forty-five".