274143231 has 16 divisors (see below), whose sum is σ = 406504800. Its totient is φ = 182597184.

The previous prime is 274143217. The next prime is 274143263. The reversal of 274143231 is 132341472.

It is a happy number.

It is not a de Polignac number, because 274143231 - 2¹¹ = 274141183 is a prime.

It is a super-2 number, since 2×274143231² = 150309022206238722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 274143195 and 274143204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274143271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30865 + ... + 38741.

It is an arithmetic number, because the mean of its divisors is an integer number (25406550).

Almost surely, 2^274143231 is an apocalyptic number.

274143231 is a deficient number, since it is larger than the sum of its proper divisors (132361569).

274143231 is a wasteful number, since it uses less digits than its factorization.

274143231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9175 (or 9169 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 274143231 is about 16557.2712425689. The cubic root of 274143231 is about 649.6196836339.

The spelling of 274143231 in words is "two hundred seventy-four million, one hundred forty-three thousand, two hundred thirty-one".