274157143 has 4 divisors (see below), whose sum is σ = 295246168. Its totient is φ = 253068120.

The previous prime is 274157141. The next prime is 274157159. The reversal of 274157143 is 341751472.

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

It is a cyclic number.

It is not a de Polignac number, because 274157143 - 2¹ = 274157141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 274157099 and 274157108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274157141) 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, 10544493 + ... + 10544518.

It is an arithmetic number, because the mean of its divisors is an integer number (73811542).

Almost surely, 2^274157143 is an apocalyptic number.

274157143 is a deficient number, since it is larger than the sum of its proper divisors (21089025).

274157143 is a wasteful number, since it uses less digits than its factorization.

274157143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21089024.

The product of its digits is 23520, while the sum is 34.

The square root of 274157143 is about 16557.6913547753. The cubic root of 274157143 is about 649.6306722403.

The spelling of 274157143 in words is "two hundred seventy-four million, one hundred fifty-seven thousand, one hundred forty-three".