274745 has 4 divisors (see below), whose sum is σ = 329700. Its totient is φ = 219792.

The previous prime is 274739. The next prime is 274751. The reversal of 274745 is 547472.

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

It is an interprime number because it is at equal distance from previous prime (274739) and next prime (274751).

It can be written as a sum of positive squares in 2 ways, for example, as 92416 + 182329 = 304^2 + 427^2 .

It is a cyclic number.

It is not a de Polignac number, because 274745 - 2⁸ = 274489 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27470 + ... + 27479.

It is an arithmetic number, because the mean of its divisors is an integer number (82425).

2²⁷⁴⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

274745 is a deficient number, since it is larger than the sum of its proper divisors (54955).

274745 is an equidigital number, since it uses as much as digits as its factorization.

274745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54954.

The product of its digits is 7840, while the sum is 29.

The square root of 274745 is about 524.1612347360. The cubic root of 274745 is about 65.0094660770.

It can be divided in two parts, 2 and 74745, that added together give a palindrome (74747).

The spelling of 274745 in words is "two hundred seventy-four thousand, seven hundred forty-five".