274681 has 4 divisors (see below), whose sum is σ = 299664. Its totient is φ = 249700.

The previous prime is 274679. The next prime is 274693. The reversal of 274681 is 186472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 274681 - 2¹ = 274679 is a prime.

It is a super-2 number, since 2×274681² = 150899303522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274661) 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, 12475 + ... + 12496.

It is an arithmetic number, because the mean of its divisors is an integer number (74916).

2²⁷⁴⁶⁸¹ is an apocalyptic number.

It is an amenable number.

274681 is a deficient number, since it is larger than the sum of its proper divisors (24983).

274681 is a wasteful number, since it uses less digits than its factorization.

274681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24982.

The product of its digits is 2688, while the sum is 28.

The square root of 274681 is about 524.1001812631. The cubic root of 274681 is about 65.0044178457.

Subtracting from 274681 its reverse (186472), we obtain a square (88209 = 297²).

The spelling of 274681 in words is "two hundred seventy-four thousand, six hundred eighty-one".